One-Pan Italian Sausage & Spinach Pasta Bake

1.Preheat your oven to 375°F (190°C).

2.In a large oven-safe skillet, heat the olive oil over medium heat. Add the Italian sausage and cook until browned, breaking it apart with a spoon, about 5-7 minutes.

3.Add the diced tomatoes (with their juice), marinara sauce, Italian seasoning, red pepper flakes, salt, and pepper to the skillet. Stir to combine and let simmer for 3-4 minutes.

4.Add the fresh spinach to the skillet, stirring until it wilts down, about 2 minutes.

5.Meanwhile, cook the penne pasta in a large pot of boiling salted water until al dente, according to package instructions. Drain and set aside.

6.Combine the cooked pasta with the sausage and spinach mixture in the skillet, stirring to mix everything evenly.

7.Sprinkle the shredded mozzarella cheese and grated Parmesan cheese over the top of the pasta mixture.

8.Transfer the skillet to the preheated oven and bake for 20-25 minutes, or until the cheese is bubbly and golden brown.

9.Remove from the oven and let cool for a few minutes before serving. Enjoy your hearty one-pan meal!