Embrace Cozy Comfort: The Ultimate Vegetarian Pesto Lasagne with Butternut Squash
Discover a delightful twist on a classic Italian favorite with our exquisite Pesto Lasagne, known in Italy as Lasagne al Pesto. This recipe stands out as one of our most beloved vegetarian creations, masterfully blending the creamy sweetness of roasted butternut squash with the vibrant, garlicky kick of fresh pesto. Imagine rich layers of tender, caramelized butternut squash, a velvety cheese béchamel, fragrant basil pesto, and perfectly cooked pasta sheets, all baked to golden perfection. It’s a culinary embrace – robust enough to be the perfect cozy supper for a chilly autumn evening, yet surprisingly light and fresh enough to grace your table during the brighter days of spring and summer. This dish truly embodies year-round comfort and gourmet flavor in every single bite.

When the concept of ‘comfort food’ comes to mind, a hearty lasagne is often one of the first dishes that springs to recollection. However, the traditional meat-based version, while undeniably delicious, is frequently a labor of love, demanding hours of simmering for the very best bolognese flavor. This is precisely why we adore crafting vegetarian lasagne recipes. They offer all the warmth and satisfaction of classic comfort food, but without the extensive fuss and long cooking times. Our Pesto Lasagne can be thought of as an autumnal masterpiece, building on the ease and charm of our Easy Courgette Lasagne. While roasting the butternut squash takes about 30 minutes, you can efficiently prepare the creamy cheese sauce simultaneously, making excellent use of your kitchen time. Once the squash is perfectly tender and the sauce is bubbling, it’s just a quick session of blitzing, grating, and then the satisfying job of assembly. This streamlined process ensures you get to that irresistible first bite much sooner!
Beyond its incredible flavor and relative ease, this Lasagne al Pesto is also a fantastic make-ahead recipe, an invaluable trait for modern lifestyles. It preps beautifully the day before, allowing it to rest in the fridge, poised and ready for its moment in the oven. This convenient aspect makes it an ideal solution for busy weeknight dinners when time is a precious commodity. Furthermore, its elegant layers and impressive presentation make it a superb choice for a stress-free dinner party dish, ensuring you can enjoy your guests’ company without being tethered to the kitchen. It’s a dish that truly delivers on both convenience and gourmet appeal.
Table of Contents
- Why You Will Love This Pesto Lasagne Recipe
- Key Ingredients for the Perfect Pesto Lasagne
- Creative Substitutions and Delicious Variations
- Step-by-Step Guide: How to Make Pesto Lasagne
- Expert Cooking Tips for Lasagne al Pesto
- Frequently Asked Questions about Pesto Lasagne
- More Delicious Recipes You Might Enjoy
- Pesto Lasagne (Lasagne al Pesto) Recipe Card
Why You Will Love This Pesto Lasagne Recipe
This isn’t just another lasagne; it’s a celebration of flavors and convenience, designed to bring joy to your table. Here’s why our Pesto Lasagne with Butternut Squash will quickly become a favorite:
- Seasonal & Fresh: It’s the perfect lasagne to celebrate and make the most of autumnal bounty, primarily the sweet, earthy butternut squash. While fantastic in cooler months, its vibrant pesto makes it enjoyable year-round.
- Quicker & Easier: Unlike traditional meat lasagne that demands hours for a rich bolognese, this vegetarian version is significantly quicker and simpler to prepare. You’ll achieve that same comforting satisfaction in much less time.
- Bursting with Flavor & Texture: Prepare your taste buds for an incredible journey. Each forkful delivers the sweet and nutty notes of roasted butternut squash, the pungent garlic and fresh herbiness of vibrant pesto, the creamy richness of our homemade cheese sauce, the umami depth of Parmesan, and a subtle warmth from a hint of chili. The varied textures – from soft squash to al dente pasta and gooey mozzarella – create a truly memorable eating experience.
- Perfect for Meal Prep & Entertaining: This dish is a master of versatility. It can be fully assembled the day before and stored in the fridge, making it ideal for stress-free entertaining or ensuring a delicious, homemade meal is ready after a busy weeknight. Simply pop it in the oven when you’re ready to bake.
- Easily Adaptable for Dietary Needs: This pesto lasagne is inherently vegetarian, and can be easily made suitable for strict vegetarians by simply swapping traditional Parmesan for a vegetarian-friendly hard cheese alternative. We also offer tips for making it vegan-friendly below.

Key Ingredients for the Perfect Pesto Lasagne
Crafting this exquisite Pesto Lasagne relies on a few key ingredients that elevate its flavor profile. While the full, detailed recipe can be found in the comprehensive recipe card at the bottom of this page, here’s a closer look at some essential components and why their quality matters:
- Ricotta: For the most luxurious and creamy texture in your butternut squash mixture, we highly recommend opting for full-fat ricotta cheese. Its richness contributes significantly to the overall mouthfeel and flavor of the lasagne. Ensure it’s well-drained to prevent a watery consistency in your final dish.
- Plain Flour (All-Purpose Flour): This humble ingredient is crucial for creating the perfect roux, the foundation of our silky-smooth béchamel sauce. It combines with melted butter to thicken the milk, providing that essential creamy body without any lumps.
- Fresh Nutmeg: A small grating of fresh nutmeg, rather than pre-ground, makes an enormous difference. Its warm, subtly nutty aroma is a classic complement to dairy-based sauces like béchamel, adding a layer of sophisticated flavor that truly elevates the dish. If fresh isn’t available, a tiny pinch of dried nutmeg will suffice.
- Fresh Pesto: This is non-negotiable for an authentic and vibrant pesto lasagne. Please, don’t be tempted to use the shelf-stable, jarred varieties; fresh pesto tastes entirely different – brighter, more herbaceous, and bursting with garlicky goodness. You can easily make your own from scratch (our easy pesto recipe is fantastic!), or purchase a quality pot from the chilled section of your local supermarket. The fresh basil, pine nuts, Parmesan, garlic, and olive oil in good fresh pesto are what make this dish sing.
- Butternut Squash: The star vegetable, providing natural sweetness and a beautiful creamy texture when roasted and blended. Its robust flavor pairs wonderfully with the sharp pesto.
- Lasagne Sheets: Use high-quality dried or fresh sheets. No-boil options simplify the process even further.
- Cheeses: A blend of Parmesan for sharp, salty notes and mozzarella for incredible melt and gooeyness is essential.
Creative Substitutions and Delicious Variations
One of the beauties of this Pesto Lasagne recipe is its flexibility. Feel free to experiment with these substitutions and variations to tailor the dish to your preferences or what you have on hand:
- Butternut Squash Alternatives: If butternut squash isn’t available or you’d like to try something different, diced pumpkin or sweet potato work exceptionally well, offering similar sweetness and texture (much like in our easy squash pasta). For a significant time-saver on prep, look for the frozen variety of pre-peeled and chopped squash in your supermarket’s freezer aisle. While it might take a little longer to roast, it drastically cuts down on hands-on preparation.
- Enhanced Garlic Flavor: For a deeper, more mellow garlic flavor, simply add a whole bulb of garlic (unpeeled, top sliced off) to the baking tray with the butternut squash before roasting. Once roasted and cooled slightly, squeeze the softened, sweet cloves directly into the food processor with the butternut squash and ricotta before blending. This imparts a wonderful depth without any harshness.
- Adjusting the Heat with Chilli: Tailor the spice level to your liking! You can add as much or as little dried chilli flakes as you prefer during the seasoning of the butternut squash, or even sprinkle some fresh finely diced red chili with the pesto layers for a fresher kick.
- Adding Crunch with Nuts: For a delightful textural contrast and an extra layer of nutty flavor, sprinkle a generous handful of toasted pine nuts over the top of the lasagne just before serving. You could also try chopped walnuts or slivered almonds if pine nuts aren’t available.
- Greens Galore: Incorporate some wilted spinach, kale, or Swiss chard into the butternut squash mixture or as a separate layer for added nutrition and vibrant color. Ensure any greens are thoroughly drained to prevent excess moisture.
- Cheese Choices: While Parmesan and mozzarella are classics, don’t shy away from other cheeses. Smoked mozzarella can add a lovely depth, or a sharp provolone, fontina, or even a good quality strong cheddar can introduce different flavor dimensions to your béchamel or top layer.
- Herbal Infusions: Beyond basil in the pesto, consider adding fresh sage or thyme leaves to your roasted butternut squash or béchamel sauce for an even more aromatic and autumnal profile.
- Gluten-Free Option: Easily adapt this recipe for a gluten-free diet by using gluten-free lasagne sheets and substituting regular plain flour with a gluten-free all-purpose flour blend for the béchamel sauce.
- Vegan Adaptations: As mentioned in our FAQ, while we haven’t tested it personally, this recipe can be adapted for vegans. You’ll need vegan ricotta (or a firm vegan cream cheese/Boursin Plant-Based), plant-based milk, vegan butter alternative, vegan hard cheese, and a dairy-free pesto.
Step-by-Step Guide: How to Make Pesto Lasagne
Creating this delicious Pesto Lasagne is a straightforward process when broken down into manageable steps. Below is a detailed guide to walk you through each stage, ensuring a perfect result. Remember, the full ingredient list and precise measurements are in the recipe card at the bottom of the page.










Expert Cooking Tips for Lasagne al Pesto
Achieving a perfect Pesto Lasagne is easy with a few insider tips. Keep these in mind to ensure your dish is a resounding success every time:
- Choosing Your Baking Dish: We recommend a 20x30cm (approximately 8×12 inch) baking dish for this recipe. Using a smaller dish will result in a thicker lasagne with more pronounced layers, which can be delightful. However, avoid using a larger dish, as the layers will be too thin, leading to a less satisfying texture and potentially quicker drying out during baking. The correct dish size helps maintain the ideal balance of ingredients and moisture.
- The Magic of Homemade Pesto: While store-bought pesto from the chilled aisle is acceptable, making your own fresh basil pesto is a game-changer and surprisingly simple! It truly elevates the flavor of this lasagne to another level, offering a brighter, more vibrant taste that jarred versions simply can’t match. Follow the straightforward steps in our Pasta al Pesto recipe to create a batch that will make all the difference.
- Selecting Lasagne Sheets: We often use dried, “no-boil” lasagne sheets, which are incredibly convenient to have in the cupboard. They cook perfectly within the sauce and require no pre-preparation. Fresh lasagne sheets are also a wonderful choice, offering a slightly more tender bite. If you’re feeling adventurous on a rainy day, consider making your own pasta dough using our pasta dough recipe. You could even double the batch to create other shapes like garganelli for another meal!
- Don’t Skip the Resting Time: As tempting as it is to dig in immediately, allowing your lasagne to rest for 5-10 minutes after it comes out of the oven is crucial. This helps the layers set, the sauce to firm up, and prevents a watery, messy slice.
- Preventing Watery Lasagne: To avoid a watery lasagne, ensure your ricotta is well-drained, and roast your butternut squash until it’s slightly caramelized, which reduces its water content. The resting period post-baking also plays a key role in allowing the sauces to reabsorb any excess moisture.
- Cold Cheese Grates Best: For easy grating and minimal mess, always grate your Parmesan (and any other hard cheese) when it’s cold directly from the fridge.

Frequently Asked Questions
Can I prep Pesto Lasagne ahead of time?
Absolutely! This Pesto Lasagne is an excellent make-ahead dish. You can assemble the entire lasagne right up to the baking stage. Once assembled, cover the dish tightly with foil or plastic wrap and refrigerate it overnight. When you’re ready to bake, you might need to add an extra 5-10 minutes to the stated cooking time to ensure it heats thoroughly and is bubbling hot all the way through before serving.
Can I make this Pesto Lasagne suitable for vegans?
While we haven’t extensively tested a fully vegan version, it is certainly possible to adapt this Pesto Lasagne! You would need to substitute all dairy ingredients with plant-based alternatives. This includes using a vegan ricotta (which might be a bit tricky to find, so a firm vegan cream cheese or even a plant-based spread like Boursin Plant Based could work), vegan milk, a butter alternative for the béchamel, and vegan hard cheese (like a plant-based Parmesan) and mozzarella. Ensure your pesto is also dairy-free, as many traditional pestos contain Parmesan.
Can I freeze Lasagne al Pesto?
Yes, this Pesto Lasagne freezes beautifully! You can freeze it either before or after baking, depending on your preference and schedule. To freeze, ensure the lasagne is completely cool (if baked). Wrap the entire dish thoroughly in cling film and then a layer of aluminum foil, or transfer it to an airtight freezer-safe container. It can be frozen for up to 3 months. To serve, defrost it overnight in the refrigerator until completely thawed. Then, either bake it from scratch (if unbaked) or reheat it in a preheated oven at 180°C (350°F) for 10-15 minutes, or until piping hot and bubbly.
Do I need to cook lasagne sheets first?
For most modern lasagne sheets, no, pre-cooking is usually unnecessary. Always check the package instructions, but typically, “no-boil” or “oven-ready” dried lasagne sheets, as well as fresh sheets, can be added directly to the dish. They will absorb moisture from the sauces and cook perfectly in the oven. If your specific brand explicitly states pre-soaking or boiling, then follow those instructions; otherwise, you can layer them dry.
Why is my Pesto Lasagne watery at the top?
A watery lasagne can be disappointing, but a few simple steps can prevent this. Firstly, ensure your butternut squash is roasted until it’s slightly caramelized, as this reduces its moisture content. Secondly, make sure your ricotta cheese is well-drained before mixing it with the squash. Most importantly, allow the lasagne to rest for at least 5 to 10 minutes after it comes out of the oven. This crucial resting period allows the sauces to settle, thicken, and reabsorb any excess juices, resulting in a firm, perfectly layered slice.
More Delicious Recipes You Might Enjoy
If the vibrant flavors of this Lasagne al Pesto have captured your heart, we’re sure you’ll adore these other comforting and delicious recipes from our collection:
- For another incredible butternut squash dish, try our Cheesy Creamy Winter Butternut Squash Gratin, a rich and indulgent side or main.
- If you appreciate the combination of squash and herbs, our Sage Pumpkin Risotto offers a wonderfully aromatic and creamy experience.
- Looking for an even simpler lasagne? Our Easy Lasagne with Cheat’s White Sauce is a fantastic shortcut without compromising on flavor.
- Master the art of classic sauces with our dedicated recipes for classic white sauce for lasagne or a quick cheat’s white sauce.
- Don’t miss out on another sensational vegetarian pasta bake: our fresh and flavorful Courgette Lasagne.
- For more pesto-inspired goodness, explore our unique Pistachio Pesto Pasta.
Recipes
Easy Lasagne With Cheat’s White Sauce
Easy Dinner Recipes
Courgette Lasagne
Sandwiches
Burrata Caprese Sandwich With Prosciutto And Pistachio Pesto
Easy Pasta Recipes
Creamy Pesto Pasta Sauce
We hope you thoroughly enjoy this incredible Lasagne al Pesto! If you tried this or any other recipe on our site, please do leave a comment and let us know how it went. Your feedback is always appreciated!
Pesto Lasagne (Lasagne al Pesto) Recipe
Pesto Lasagne (Lasagne al Pesto)
By: Margie
This Pesto Lasagne (Lasagne al Pesto) is the ultimate autumn comfort food. Imagine layers of creamy roasted butternut squash, rich cheese sauce, garlicky basil pesto, pasta, and gooey mozzarella. Trust us, it tastes so good…
Cook Time: 50 mins
Total Time: 1 hr 5 mins
Servings: 6 servings
Ingredients
- 1 medium butternut squash, peeled, de-seeded and cut into cubes
- 1 tbsp olive oil
- Salt and freshly ground black pepper
- Pinch of dried chilli flakes
- 2 tbsp ricotta, drained (full-fat recommended)
For the Béchamel Sauce:
- 100 g unsalted butter
- 100 g plain flour (all-purpose flour)
- 1 L full-fat milk
- 30 g Parmesan, grated (or vegetarian hard cheese)
- Salt and freshly ground black pepper
- Fresh nutmeg, grated (a generous pinch)
To Assemble:
- 9-12 fresh or dried lasagne sheets
- 130 g fresh basil pesto, approximately
- 100 g Parmesan, grated (or vegetarian hard cheese, plus extra for topping)
- 1 ball of mozzarella, drained well and torn into pieces
Instructions
- Preheat your oven to 180°C (350°F) fan. Prepare a baking tray and a 20x30cm (approx. 8×12 inch) ovenproof dish.
- Place the diced butternut squash onto the baking tray and drizzle with olive oil. Season with salt, freshly ground black pepper, and a pinch of dried chilli flakes. Toss to coat evenly, then spread in a single layer. Roast in the oven for about 30-35 minutes, or until the squash is tender and caramelized at the edges.
- Carefully spoon the cooked butternut squash into a food processor and add the well-drained ricotta. Blitz until combined. You can blend until completely smooth or leave some texture, as preferred. Taste and adjust seasoning if needed. Set aside.
- To make the béchamel sauce: Melt the butter in a large non-stick saucepan over low-medium heat until it foams. Add the flour and stir continuously for 2 minutes to cook out the raw flour taste, forming a roux.
- Gradually add the milk, whisking constantly to prevent lumps. Initially, add small amounts, whisking until smooth before adding more. Continue cooking and whisking until the sauce thickens enough to coat the back of a wooden spoon.
- Remove the béchamel from the heat. Stir in 30g of grated Parmesan and a generous grating of fresh nutmeg. Stir until the cheese has melted. Season to taste with salt and freshly ground black pepper.
- To assemble: Spread one-third of the butternut squash mixture evenly in the bottom of your baking dish. Top with a layer of lasagne sheets, followed by one-third of the cheese sauce. Dollop half of the pesto evenly over the sauce, then sprinkle with a portion of the grated Parmesan.
- Repeat the layers: another third of the butternut squash mixture, lasagne sheets, the remaining pesto, and another third of the cheese sauce, finished with Parmesan. Ensure the final layer of white sauce is on top.
- Generously scatter the torn mozzarella over the top layer of white sauce and sprinkle with a little more Parmesan.
- Bake for about 30-35 minutes, or until the lasagne is bubbly, golden-brown, and cooked through.
- Crucially, allow the lasagne to stand for 5-10 minutes before slicing and serving. This resting period helps the layers set and prevents a watery mess. Enjoy!
Notes
- Refer to the step-by-step photos above for a helpful visual guide.
- To Store: Cover the cooled lasagne well or transfer to an airtight container and refrigerate for up to 3 days.
- To Reheat: Individual portions reheat well in the microwave (1-2 minutes until hot). For larger portions or reheating in the oven, bake at 180°C (350°F) for 10-15 minutes, or until piping hot.
- To Freeze: This lasagne can be frozen either before or after baking. Ensure it’s completely cool if pre-baked. Wrap the dish tightly in cling film and foil, or transfer to an airtight freezer-safe container. Freeze for up to 3 months. Defrost overnight in the refrigerator before baking from scratch or reheating.
- Make Ahead: Assemble the entire lasagne ahead of time, cover, and chill in the fridge overnight. You may need to add 5-10 minutes to the baking time.
- Serving Suggestions: We love serving Pesto Lasagne with warm garlic bread to sop up the delicious sauces. A crisp green salad or some steamed vegetables make a perfect complement.
- Adding Texture: For an extra crunch, sprinkle pangrattato (garlicky breadcrumbs) or toasted pine nuts over individual servings just before eating.
- Vegetarian-Friendly Cheese: To ensure your lasagne is vegetarian, swap traditional Parmesan for a vegetarian Parmesan-style cheese. Gran Moravia, Old Winchester, or a strong vegetarian Cheddar are great alternatives.
Nutrition
Calories: 794kcal,
Carbohydrates: 73g,
Protein: 31g,
Fat: 43g,
Saturated Fat: 21g,
Polyunsaturated Fat: 2g,
Monounsaturated Fat: 10g,
Trans Fat: 1g,
Cholesterol: 141mg,
Sodium: 800mg,
Potassium: 877mg,
Fiber: 3g,
Sugar: 12g,
Vitamin A: 14809IU,
Vitamin C: 26mg,
Calcium: 715mg,
Iron: 4mg
Nutrition information is automatically calculated and should only be used as an approximation.
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