I make a spinach and ricotta lasagne similar to the one below. (I don't follow a recipe and I make the tomato pasta sauce myself) 20 lasagna noodles 2 tablespoons olive oil 1 cup chopped fresh mushrooms 1 cup chopped onion 1 tablespoon minced garlic 2 cups fresh spinach 3 cups ricotta cheese 2/3 cup grated Sharp cheese 1 teaspoon salt 1 teaspoon dried oregano 1 teaspoon dried basil leaves 1/2 teaspoon ground black pepper 1 egg 3 cups shredded mozzarella cheese 3 cups tomato pasta sauce 1 cup grated Parmesan cheese