Making Vegetarian Lasagna with Spinach and Ricotta is a straightforward process that involves layering the ingredients and baking them to perfection. Follow these easy steps:

1. Preheat Your Oven: Set your oven to 375°F (190°C) to ensure it’s ready for baking the lasagna.
2. Prepare the Noodles: Cook the lasagna noodles according to the package directions. Once cooked, drain them and set them aside.
3. Mix the Filling: In a large bowl, combine the ricotta cheese, fresh spinach, egg (or egg substitute), Italian herbs, salt, and pepper. Mix until all ingredients are well incorporated.
4. Layer the Lasagna:

   • Spread a generous layer of marinara sauce on the bottom of a baking dish.
   • Place 3 lasagna noodles over the sauce.
   • Add half of the ricotta and spinach mixture over the noodles.
   • Repeat the layering process with another layer of marinara sauce, noodles, and the remaining ricotta mixture.
   • Top with the last layer of noodles and the remaining marinara sauce.

5. Add the Cheeses: Sprinkle the shredded mozzarella and grated Parmesan cheese evenly over the top layer.
6. Bake: Cover the baking dish with foil and bake for 25 minutes. Then, remove the foil and bake for an additional 15 minutes, or until the cheese is bubbly and golden brown.
7. Cool and Serve: Let the lasagna cool for a few minutes before slicing and serving.