Preheat your oven to 350°F (175°C).

In a large pot, bring salted water to a boil and cook the pasta according to package instructions until al dente. Drain and set aside.

In a mixing bowl, combine the pumpkin puree, ricotta cheese, garlic powder, Italian seasoning, salt, and pepper. Mix until well combined.

In a large mixing bowl, add the cooked pasta and pumpkin mixture together. Stir until the pasta is well-coated with the creamy sauce.

In a greased baking dish, spoon half of the pasta mixture into the dish, and then sprinkle half of the mozzarella and Parmesan cheese over the top.

Add the remaining pasta mixture and finish with the rest of the cheese.

Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the cheese is bubbly and golden on top.

Once out of the oven, let it cool for a few minutes. Garnish with fresh parsley if desired, and serve warm.