In a bowl, mix ricotta cheese, garlic powder, onion powder, salt, and pepper.
Spread a layer of marinara sauce on the bottom of a baking dish.
Layer 3 lasagna noodles over the sauce, followed by half of the ricotta mixture, half of the spinach and mushroom mixture, and a layer of mozzarella cheese.
Repeat the layers, finishing with a layer of noodles topped with marinara sauce and remaining mozzarella and Parmesan cheese.
Cover with foil and bake for 25 minutes, then remove the foil and bake for an additional 15 minutes until bubbly and golden.
Let it cool for a few minutes before serving.
Notes
For a vegetarian option, ensure the marinara sauce is meat-free.
Feel free to add other vegetables like zucchini or bell peppers.
This dish can be made ahead of time and stored in the refrigerator before baking.