Butternut Squash Lasagna Recipe

I absolutely fell in love with this Butternut Squash Lasagna Recipe the first time I pulled it out of the oven, bubbling and golden brown.

The combination of sweet roasted squash and creamy ricotta is pure comfort food magic that warms you from the inside out.

I made this for a family dinner last week, and everyone was scraping their plates clean, asking for seconds before I even sat down.

It’s surprisingly simple to put together, yet it tastes like something you would order at a high-end Italian restaurant.

Ingredients

Here is everything you will need to create this delicious vegetarian masterpiece in your own kitchen.

• 1 large butternut squash (about 3 pounds) – You will peel, seed, and cube this for roasting, which brings out the natural sweetness better than steaming.
• 1 tablespoon olive oil – Use a high-quality oil to coat the squash cubes before roasting them in the oven.
• 1.5 cups ricotta cheese – I prefer whole milk ricotta for the creamiest texture, but part-skim works if you want a lighter option.
• 5 cloves garlic, minced – Fresh garlic is essential here for that punchy, savory flavor that cuts through the rich squash.
• 0.5 cups milk – This helps thin out the squash puree just enough to make it spreadable like a sauce.
• 0.5 teaspoon salt – Essential for seasoning the squash layer so it doesn’t taste bland against the cheese.
• 0.25 teaspoon nutmeg – This warming spice pairs perfectly with winter squash and adds a subtle depth of flavor.
• 48 ounces frozen spinach – Thaw this completely and squeeze out every drop of water to prevent a soggy lasagna.
• 1.5 cups ricotta cheese (for spinach layer) – You need a second batch of ricotta to mix with the greens for the filling.
• 3 cups shredded mozzarella cheese – Divide this up, as you will need some for the filling and plenty for the gooey topping.
• 0.25 cup fresh basil, chopped – Fresh herbs really brighten up the dish; dried basil just doesn’t offer the same aromatic punch.
• 3 medium zucchini – Slice these into thin planks to add texture and a fresh vegetable bite between the layers.
• 10 sheets of no-boil lasagna noodles – These save so much time and absorb the moisture from the veggies perfectly as they bake.
• 0.5 cup parmesan cheese – Freshly grated parmesan adds that salty, nutty finish to the top crust.
• 0.25 teaspoon black pepper – Freshly cracked pepper adds a nice little kick to the creamy spinach mixture.

Note: This recipe makes approximately 10 hearty servings.

Variations

You can easily tweak this recipe to suit different dietary needs or flavor preferences without losing its charm.

• Make it meaty: If you have meat-eaters at the table, try adding a layer of browned Italian sausage or ground turkey seasoned with fennel and sage.
• Gluten-free option: Swap out the standard wheat noodles for gluten-free brown rice lasagna sheets, or skip the pasta entirely and use extra zucchini slices for the layers.
• Dairy-free alternatives: Use high-quality almond milk ricotta and vegan mozzarella shreds, though you may need to add a bit more seasoning to mimic the richness of dairy.
• Add more veggies: Sautéed mushrooms or roasted red peppers make excellent additions to the spinach layer if you want to pack in even more nutrition.
• Herbal swap: If you aren’t a fan of basil, fresh sage leaves fried in a little butter make an incredible topping that screams autumn.

Cooking Time

• Prep Time: 1 hour
• Cooking Time: 1 hour
• Total Time: 2 hours

Equipment you need

• Large rimmed baking sheet – Essential for roasting the squash cubes without them falling off the edges.
• Food processor or high-speed blender – Used to puree the roasted squash into a smooth, creamy sauce.
• Large mixing bowl – Needed to combine the spinach, ricotta, and cheese mixture thoroughly.
• 9×13 inch casserole dish – A deep baking dish is crucial to hold all the delicious layers without bubbling over.
• Sharp chef’s knife and cutting board – Required for safely peeling and cubing the tough butternut squash.
• Vegetable peeler – Makes removing the thick skin of the squash much easier than using a knife.
• Mesh strainer or cheesecloth – Vital for squeezing all the excess liquid out of the thawed spinach.

How to Make Butternut Squash Lasagna Recipe?

Credit IG:minimalistbaker

Prepare the Butternut Squash Filling

Start by preheating your oven to 375°F and lining a large baking sheet with parchment paper for easy cleanup. Toss your peeled and cubed squash with olive oil, roast until tender, then blend it with ricotta, milk, garlic, and spices until smooth. This creates your rich, orange “sauce” base that replaces traditional tomato marinara in this unique dish.

Prepare the Spinach Ricotta Mixture

While the squash is cooling down, grab a large bowl to mix your green filling layer together. Combine the thoroughly drained spinach with the second portion of ricotta, one cup of mozzarella, and your chopped fresh basil. Mix everything until it is well combined, seasoning it with a pinch of salt and pepper to taste.

Assemble the First Layer

Grease your deep casserole dish lightly with cooking spray to prevent any sticking on the bottom or sides. Spread one-third of your butternut puree on the bottom, sprinkle with mozzarella, and place a single layer of noodles on top. Spread half the spinach mix over the noodles, top with more cheese, and finish this tier with zucchini slices.

Build the Second Layer

Repeat the exact same layering process you just completed to build up the height of the lasagna. Spread another third of the squash puree over the zucchini, followed by cheese and another layer of pasta sheets. Add the remaining spinach mixture, a little more mozzarella, and your final layer of sliced zucchini planks.

Add the Final Toppings

Spread the final remaining third of the butternut squash mixture evenly over the top of the zucchini layer. Sprinkle the remaining cup of mozzarella cheese and the grated parmesan cheese generously over the entire dish. This top layer will become beautifully golden and bubbly, acting as a delicious crust for the lasagna.

Bake the Lasagna

Cover the dish with a piece of aluminum foil tented slightly so it doesn’t stick to the cheese. Bake for about 20 to 30 minutes, then remove the foil and bake for another 15 to 20 minutes. You want the noodles to be tender and the cheese to be browned and bubbling vigorously.

Cool and Serve

Remove the lasagna from the oven and let it sit on the counter for at least 10 to 15 minutes. This resting period allows the layers to set so they don’t slide apart when you cut into them. Garnish with extra fresh basil leaves right before slicing into squares and serving to your hungry guests.

Additional Tips for Making this Recipe Better

• I always roast the squash instead of steaming it because the caramelization adds a depth of flavor you just can’t get from boiled vegetables.
• I recommend using “no-boil” noodles to save time, but ensure you cover them completely with sauce so they hydrate properly during baking.
• I found that grating my own mozzarella from a block melts so much better than the pre-shredded bags which have anti-caking agents.
• I learned the hard way that you must squeeze the spinach until it is bone dry, or your beautiful lasagna will be sitting in a puddle of green water.
• I like to broil the lasagna for the last 2-3 minutes of cooking to get those crispy, brown cheese spots that everyone fights over.

How to Serve Butternut Squash Lasagna Recipe?

This dish is rich and filling on its own, so it pairs best with lighter sides that can cut through the creaminess. A crisp green salad with a sharp vinaigrette—like lemon and olive oil—is the perfect palate cleanser. You could also serve it with some garlic bread or crusty baguette to mop up any extra sauce on the plate.

For a festive touch during the holidays, garnish the top with fried sage leaves or pomegranate arils for a pop of color. It looks stunning when brought to the table in a white ceramic baking dish.

Nutritional Information

Here is a quick look at the estimated nutrition per serving:

• Calories: 414 kcal
• Protein: 27 g
• Carbohydrates: 32 g
• Fat: 20 g

Make Ahead and Storage

Refrigerator Storage

You can store leftovers in an airtight container in the refrigerator for up to 4 days. The flavors actually meld together even better after sitting for a day, making it a great meal prep option.

Freezing Instructions

This lasagna freezes beautifully, either baked or unbaked, for up to 3 months if wrapped tightly. I usually double the recipe and freeze one entire pan for a busy night when I don’t want to cook.

Reheating Tips

To reheat, cover the dish with foil and bake at 350°F until it is heated through to the center. If heating a single slice, the microwave works well, but the oven keeps the texture much better.

Why You’ll Love This Recipe?

Here are a few reasons why this dish will become a regular in your rotation:

• Hidden Veggies: It is packed with nutrient-dense squash, spinach, and zucchini, making it a great way to get kids (and adults) to eat their greens.
• Perfect for Crowds: The recipe yields a large amount, making it ideal for holiday gatherings, potlucks, or family dinners where you need to feed a lot of people.
• Vegetarian Comfort: It offers all the satisfaction of a meaty lasagna but remains completely vegetarian, which is great for “Meatless Mondays.”
• Make-Ahead Friendly: You can assemble the entire dish a day in advance and just pop it in the oven when you are ready to eat.
• Unique Flavor Profile: The sweetness of the squash combined with the savory cheese and garlic is a sophisticated twist on the classic tomato-based version.