This Creamy Spinach & Mushroom Lasagna is a vegetarian twist on the classic Italian comfort food. Layers of pasta are filled with a rich and creamy spinach and mushroom mixture, ricotta cheese, and mozzarella, all baked to bubbly perfection.
Sauté mushrooms and spinach: Heat the olive oil in a large skillet over medium heat. Add the sliced mushrooms and cook for 5-7 minutes, until softened and browned. Add the chopped spinach and cook for 2-3 minutes, until wilted. Remove from heat and let cool slightly.
Make ricotta mixture: In a medium bowl, combine the ricotta cheese, Parmesan cheese, beaten egg, nutmeg, salt, and pepper. Mix well.
Assemble lasagna: Preheat oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish. Spread a thin layer of marinara sauce on the bottom of the dish.
Layer lasagna: Place three lasagna noodles on top of the sauce (if using no-boil noodles, just place them dry). Spread half of the ricotta mixture over the noodles. Top with half of the spinach and mushroom mixture and one-third of the shredded mozzarella cheese. Repeat layers: noodles, ricotta, spinach/mushroom, and mozzarella. Top with a final layer of noodles and the remaining marinara sauce. Sprinkle with the remaining mozzarella cheese.
Bake: Cover the baking dish with foil and bake for 30 minutes. Remove the foil and bake for another 15-20 minutes, or until the cheese is melted and bubbly and the lasagna is heated through.
Let rest: Let the lasagna rest for 10-15 minutes before cutting and serving. This will help it to set and make it easier to serve.
Notes
Mushrooms: You can use other types of mushrooms, such as shiitake or portobello, instead of cremini mushrooms.
Spinach: You can use frozen spinach instead of fresh spinach. Make sure to thaw it completely and squeeze out any excess water before using.
Ricotta Cheese: Whole milk ricotta cheese will give the lasagna a richer flavor.
Mozzarella Cheese: Fresh mozzarella cheese is a great choice for this lasagna.
Marinara Sauce: You can use store-bought marinara sauce or make your own.
No-Boil Noodles: Using no-boil lasagna noodles makes this recipe even easier.