Mushroom and Spinach Lasagna

### Instructions:

#### 1. Prepare the Mushroom and Spinach Filling:
Start by heating olive oil in a large skillet over medium heat. Add the diced onion and cook until softened, about 3-4 minutes. Add the minced garlic and cook for another minute, until fragrant.

Next, add the sliced mushrooms to the skillet. Sauté them until they release their moisture and become tender, about 8-10 minutes. Stir in the spinach and cook until wilted. Season the mixture with salt, pepper, thyme, and nutmeg. Remove from heat and set aside to cool slightly.

#### 2. Make the Ricotta Mixture:
In a bowl, combine the ricotta cheese, egg, grated Parmesan, salt, and pepper. Stir until the mixture is smooth and well combined. This will provide a creamy and rich base for the lasagna layers.

#### 3. Prepare the Tomato Sauce:
In a saucepan, heat olive oil over medium heat. Add the marinara sauce, dried oregano, and red pepper flakes (if using). Simmer the sauce for 5-7 minutes to allow the flavors to meld together. Taste and adjust seasoning if needed.

#### 4. Assemble the Lasagna:
Preheat your oven to 375°F (190°C). In a 9×13-inch baking dish, spread a thin layer of the tomato sauce on the bottom. Place 3 lasagna noodles on top of the sauce. Then, spread a layer of the ricotta mixture over the noodles, followed by a portion of the mushroom and spinach filling. Add a sprinkle of mozzarella cheese on top.

Repeat the layers—noodles, ricotta, mushroom-spinach mixture, and mozzarella—until you have used up all your ingredients. Finish with a final layer of noodles, topped with the remaining tomato sauce, mozzarella, and a sprinkle of Parmesan cheese.

#### 5. Bake:
Cover the baking dish with aluminum foil and bake for 25 minutes. Then, remove the foil and bake for an additional 15-20 minutes, until the lasagna is hot and bubbly, and the cheese is golden and melted. Let it cool for a few minutes before slicing and serving.

### Why You’ll Love Mushroom and Spinach Lasagna:
This lasagna has everything you love about the classic dish, but with a fresh, veggie-packed twist. The mushrooms add an earthy, meaty texture, while the spinach brings a pop of color and nutrients. The ricotta mixture makes the lasagna extra creamy, and the tangy marinara sauce ties everything together. It’s the perfect balance of flavors and textures.

### Nutritional Benefits:
Mushrooms and spinach are both packed with nutrients. Mushrooms are a good source of B vitamins, antioxidants, and fiber, while spinach is high in iron, calcium, and vitamins A and C. Combined with the ricotta and mozzarella cheese, this lasagna offers a good balance of protein, calcium, and healthy fats. Plus, using whole-grain lasagna noodles can boost the fiber content for an even healthier dish.

**Mushroom and Spinach Lasagna** is a fantastic way to enjoy the flavors of traditional lasagna while incorporating more vegetables into your diet. It’s a dish that’s comforting, satisfying, and perfect for those who prefer a plant-based option or want to try something a little different. Make it ahead of time, and it’s sure to become a favorite in your weekly dinner rotation!