Nutrition Facts
Serving Size 8
- Amount Per Serving
- Calories 43kcal
There’s something undeniably heartwarming about digging into layers of tender roasted butternut squash, wilted spinach, creamy ricotta, and melted mozzarella all nestled between perfectly cooked noodles. This comforting butternut squash and spinach lasagna brings together fall’s richest flavors—herby notes of thyme, hint of garlic, and tangy marinara—into a dish that feels like a warm hug. Whether you’re feeding a hungry crowd or craving cozy solo dinners, this vegetarian delight is here to steal the show and earn a permanent spot in your recipe rotation.
Let’s gather the essentials that make this lasagna a showstopper, from rich cheeses to vibrant veggies—all working together to create those ooey-gooey, savory layers.
With all your ingredients prepped, it’s time to assemble this layered masterpiece. From boiling noodles to roasting squash and building each stratum of flavor, these steps will guide you through creating a lasagna that’s both comforting and elegant.
1. Preheat your oven to 375°F (190°C) and grease a 9x13 inch baking dish to prevent sticking.
2. In a large pot of boiling salted water, cook the lasagna noodles according to package directions until al dente. Drain and set aside on a baking sheet to keep them from sticking.
3. In a large mixing bowl, combine the diced butternut squash, olive oil, salt, pepper, garlic powder, and dried thyme. Toss until every piece is well coated.
4. Spread the squash mixture in a single layer on a baking sheet and roast for 20–25 minutes, or until pieces are tender and slightly caramelized. Let cool briefly.
5. In another bowl, mix the roasted squash, chopped spinach, ricotta cheese, beaten egg, and half of the mozzarella until evenly combined.
6. Spread a thin layer of marinara sauce on the bottom of the prepared baking dish.
7. Arrange three lasagna noodles over the sauce, then spread half of the butternut squash–spinach mixture on top in an even layer.
8. Spoon another layer of marinara sauce over the filling, then top with three more noodles and the remaining squash mixture.
9. Finish with the final three noodles, pour the rest of the marinara sauce over them, and sprinkle the remaining mozzarella and Parmesan cheeses evenly.
10. Cover the dish with aluminum foil and bake for 25 minutes. Remove foil and bake another 15 minutes, until cheese is bubbly and golden brown.
11. Let the lasagna rest for 10 minutes before slicing. Garnish with fresh basil if desired.
This lasagna shines on its own, but a few simple sides and touches can elevate your meal into a full festive spread perfect for family dinners or casual get-togethers.
A few insider tricks will guarantee your lasagna turns out picture-perfect every time. From ingredient swaps to prep hacks, these pointers help you tailor the dish to your taste and schedule.
When you’ve assembled or cooked more lasagna than you can eat in one sitting, proper storage keeps every layer as delicious as day one. Follow these methods to lock in flavor and texture.
Here are quick answers to the most common questions, so you can feel confident before firing up the oven:
A: Preparing the ingredients—peeling and dicing the squash, roasting it, chopping spinach, cooking noodles, and assembling—takes about 45 minutes. Baking the covered lasagna for 25 minutes plus an additional 15 minutes uncovered adds 40 minutes, and a 10-minute rest before serving brings the total to roughly 1 hour and 35 minutes.
A: Yes. Assemble the lasagna up to step 10, then cover tightly and refrigerate for up to 2 days before baking. To freeze, assemble in a freezer-safe dish, wrap well, and freeze for up to 2 months. Thaw in the refrigerator overnight before baking; you may need to add a few extra minutes to the baking time if it’s still cold.
A: Ensure the lasagna noodles are cooked al dente and drained very well. Roast the squash until slightly caramelized so it releases less water. Let the roasted squash cool before mixing with the ricotta and egg. Finally, avoid over-saucing each layer—use a thin, even coat of marinara to keep excess moisture at bay.
A: For a dairy-free version, use plant-based ricotta and shredded mozzarella alternatives, and substitute nutritional yeast for Parmesan. To bind the cheese layer without egg, add a tablespoon of cornstarch to the ricotta mixture or mix in 2 tablespoons of vegan mayo; this helps maintain structure during baking.
A: Absolutely. Sauté sliced mushrooms, zucchini ribbons, or bell peppers until just tender, drain excess liquid, and layer with the squash. You can also stir finely chopped onions or leeks into the marinara for more depth. Boost flavor by adding a pinch of red pepper flakes or a teaspoon of dried oregano to the sauce.
A: Store leftover lasagna in an airtight container in the refrigerator for up to 4 days. To reheat in the oven, cover with foil and bake at 350°F until warmed through (about 15–20 minutes). In the microwave, heat individual portions for 2–3 minutes, rotating halfway to ensure even heating.
A: Yes. Swap regular lasagna noodles for whole wheat, gluten-free, or even thinly sliced eggplant or zucchini strips as a low-carb option. If using vegetable slices, roast or grill them first to remove excess moisture before layering to prevent a watery casserole.
This lasagna works its magic by balancing sweet, caramelized squash and bright spinach with creamy ricotta, tangy marinara, and melty cheeses—all layered for maximum flavor in every bite. The roast-and-mix method locks in texture, while simple seasonings let each ingredient shine. It’s perfect for cozy dinners or impressing guests with minimal fuss. Feel free to print and save this recipe for your next weekend kitchen adventure—and drop a comment below if you try it, have questions, or discover fun twists of your own!
Roasted butternut squash and spinach mingle with creamy ricotta, marinara, and melted mozzarella to create a warm, cozy lasagna that brims with rich autumn flavors and cheesy bliss.
Serving Size 8