- 12 lasagna noodles (or enough to create 3 layers)
- 2 tablespoons olive oil
- 3 cups sliced fresh mushrooms (button or cremini work well)
- 3 cloves garlic, minced
- 4 cups fresh spinach, roughly chopped
- 1 medium onion, diced
- 15 ounces ricotta cheese (can substitute with cottage cheese for a lighter option)
- 1 large egg
- 1/2 cup grated Parmesan cheese
- 2 cups shredded mozzarella cheese
- Salt and freshly ground black pepper to taste
- 1 teaspoon dried oregano or Italian seasoning (optional)
- 1/4 teaspoon crushed red pepper flakes (optional for a little heat)
For substitutions, you can use spinach kale or Swiss chard if you prefer. Vegan cheeses or dairy-free options work as well; just choose your favorites to keep it plant-based.