Creating Creamy Sausage Rigatoni is straightforward if you follow these clear steps:

1. Cook Pasta: Boil a large pot of salted water. Cook the rigatoni according to package instructions until al dente. Drain and set aside.
2. Brown the Sausage: In a large skillet, heat the olive oil over medium heat. Add the Italian sausage and cook until browned, breaking it up with a spoon, about 5-7 minutes. Drain excess grease if needed.
3. Sauté Onion and Garlic: Add the chopped onion to the skillet. Sauté until soft, about 3-5 minutes. Add the minced garlic and cook for another minute until fragrant.
4. Create the Sauce: Pour in the heavy cream and chicken broth. Add the Italian seasoning, salt, and pepper. Let the mixture simmer for about 5 minutes, allowing it to thicken slightly.
5. Combine Pasta and Sauce: Add the drained rigatoni to the skillet, tossing it gently to coat the pasta in the creamy sauce. Stir until well combined.
6. Add Cheese: Sprinkle in the Parmesan cheese and stir until melted and incorporated into the sauce.
7. Adjust Seasoning: Taste and adjust the seasoning with more salt and pepper, if needed.
8. Garnish and Serve: Remove from heat and garnish with chopped parsley before serving.

These steps will guide you seamlessly in creating this delicious and creamy dish from start to finish!