Ingredients
- 15 lasagna noodles
- 2 tablespoons olive oil
- 1 cup chopped fresh mushrooms
- 1 cup chopped onions
- 1 tablespoon minced garlic
- 2 cups fresh spinach
- 3 cups ricotta cheese
- ⅔ cup grated Romano cheese
- 1 egg
- 1 teaspoon salt
- 1 teaspoon dried oregano
- 1 teaspoon dried basil leaves
- ½ teaspoon ground black pepper
- 3 cups shredded mozzarella cheese
- 3 cups tomato pasta sauce
- 1 cup grated Parmesan cheese
Instructions
- Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C).
- Bring a large pot of lightly salted water to a boil. Add lasagna noodles and cook for 8 to 10 minutes or until al dente; drain.
- Meanwhile, heat olive oil in a skillet over medium-high heat. Add mushrooms, onions, and garlic and cook until onions are tender; drain excess liquid and cool.
- At the same time, bring a small pot of water to a boil; add spinach and simmer for 5 minutes. Drain and cool slightly; squeeze out any excess liquid and finely chop.
- Combine ricotta cheese, Romano cheese, egg, salt, oregano, basil, and pepper in a bowl.
- Add cooled mushroom mixture and spinach; beat with an electric mixer on low speed for 1 minute.
- Lay 5 lasagna noodles in the bottom of a 9x13-inch baking dish.
- Spread 1/3 of the ricotta-spinach mixture over noodles, then sprinkle with 1 cup mozzarella cheese and 1/3 cup Parmesan cheese.
- Spread 1 cup pasta sauce over top. Repeat layers two more times, then cover with aluminum foil.
- Bake in the preheated oven for 1 hour. Cool 15 minutes before serving.