With your ingredients ready, let’s dive into the straightforward steps to create the Easy Spinach Mushroom Pasta:

1. Cook the Pasta: In a large pot, bring salted water to a boil. Add the spaghetti and cook according to package instructions until al dente. Reserve 1 cup of pasta water, then drain and set aside.
2. Sauté the Garlic: In a large skillet, heat olive oil over medium heat. Add the minced garlic and sauté for about 1 minute, until fragrant.
3. Add the Mushrooms: Stir in the sliced mushrooms and cook for 5-7 minutes, until they release their moisture and start to brown.
4. Incorporate Spinach: Add the fresh spinach to the skillet. Cook for another 2-3 minutes until the spinach wilts down.
5. Make the Sauce: Pour in the heavy cream, stirring to combine. Allow it to simmer for 2-3 minutes, allowing it to thicken slightly.
6. Mix in Cheese: Gradually add the grated Parmesan cheese to the sauce, stirring continually until melted and smooth. Season with salt, pepper, and red pepper flakes if using.
7. Combine Pasta and Sauce: Add the cooked pasta to the skillet, tossing well to coat with the creamy sauce. If the mixture is too thick, add reserved pasta water a little at a time until desired consistency is reached.
8. Taste and Adjust: Sample the dish and adjust seasonings if needed. Add more cheese for richness or a splash of cream for extra creaminess.
9. Serve Immediately: Use tongs to plate the pasta, making sure everyone gets a generous amount of mushrooms and spinach.

Each step is designed to enhance the flavors and textures of the dish, making it a quick yet satisfying meal.