Ingredients
Equipment
Method
- Heat the olive oil in a large skillet over medium heat. Add the chopped red onion and cook until softened, about 5-7 minutes. Stir in the minced garlic and cook for another minute until fragrant.2 tablespoons olive oil, 1 large red onion, 3 cloves garlic
- Add the diced zucchini, yellow squash, red bell pepper, and yellow bell pepper to the skillet. Cook, stirring occasionally, until the vegetables are tender-crisp, about 8-10 minutes.1 large zucchini, 1 large yellow squash, 1 large red bell pepper, 1 large yellow bell pepper
- Stir in the squeezed-dry spinach, dried oregano, dried basil, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Cook for another 2 minutes to combine the flavors.10 ounce frozen spinach, 1 teaspoon dried oregano, 1 teaspoon dried basil, 1/2 teaspoon salt, 1/4 teaspoon black pepper
- In a medium bowl, combine the ricotta cheese, 1/2 cup of the Parmesan cheese, and the lightly beaten egg. Stir until well combined. Season with a pinch of salt and pepper if desired.1 15 ounce container ricotta cheese, 1 cup Parmesan cheese, 1 large egg
- Preheat your oven to 375°F (190°C). Spread about 1 cup of marinara sauce evenly over the bottom of a 9x13 inch baking dish.1 24 ounce jar marinara sauce
- Arrange a single layer of lasagna noodles over the marinara sauce (break noodles to fit if necessary). Top with half of the sautéed vegetable mixture, spreading it evenly.12-16 lasagna noodles
- Dollop half of the ricotta mixture over the vegetables and spread it gently. Spoon another 1 cup of marinara sauce over the ricotta.1 24 ounce jar marinara sauce
- Add another layer of lasagna noodles. Top with the remaining vegetable mixture.12-16 lasagna noodles
- Spread the remaining ricotta mixture over the vegetables, followed by another cup of marinara sauce. Finish with a final layer of lasagna noodles.1 24 ounce jar marinara sauce, 1 15 ounce container ricotta cheese
- Spread the remaining marinara sauce over the top layer of noodles, ensuring they are completely covered. Sprinkle evenly with the shredded mozzarella cheese and the remaining 1/2 cup of Parmesan cheese.1 24 ounce jar marinara sauce, 1 cup Parmesan cheese, 2 cups mozzarella cheese
- Cover the baking dish tightly with aluminum foil. Bake for 45 minutes.
- Remove the foil and bake for an additional 15-20 minutes, or until the cheese is melted, bubbly, and lightly golden brown.
- Let the lasagna rest for 10-15 minutes before slicing and serving. This allows the layers to set and makes it easier to cut.
Notes
Leftovers can be stored in the refrigerator for up to 3-4 days. Reheat individual portions in the oven at 350°F (175°C) for 15-20 minutes.
