Follow these simple steps to create your own Creamy Italian Sausage Rigatoni:

1. Cook the Pasta: In a large pot of salted boiling water, cook the rigatoni according to package instructions. Reserve 1 cup of pasta water, then drain and set aside.
2. Brown the Sausage: In a large skillet over medium heat, add the olive oil and Italian sausage. Cook until browned and cooked through, breaking it apart as it cooks (about 5-7 minutes).
3. Sauté Vegetables: Add the diced onion to the skillet and sauté for 2-3 minutes, followed by the minced garlic. Cook until fragrant (about 1 minute).
4. Create Sauce Base: Pour in the heavy cream and chicken broth, stirring to combine with the sausage. Bring to a simmer, allowing it to thicken slightly.
5. Combine Ingredients: Add the cooked rigatoni to the skillet along with the grated Parmesan cheese. Stir until the pasta is well coated in the creamy sauce.
6. Adjust Consistency: If the sauce is too thick, add reserved pasta water a little at a time until desired consistency is reached.
7. Season: Add Italian seasoning and season with salt and pepper to taste. Stir to incorporate.
8. Garnish and Serve: Remove from heat, garnish with chopped parsley, and serve immediately.

These straightforward steps will guide you through the process of crafting this amazing dish with ease.