Creating Garlic Butter Chicken Rigatoni with Creamy Parmesan Sauce is a delightful culinary journey. Follow these simple steps for an amazing outcome:

1. Cook Pasta: In a large pot, bring water to a boil. Add salt and the rigatoni pasta. Cook according to package instructions until al dente. Drain and set aside, reserving 1/2 cup of pasta water.
2. Sauté Garlic: In a large skillet, melt the butter and olive oil over medium heat. Add the minced garlic and sauté for about 1-2 minutes until fragrant, taking care not to burn it.
3. Cook Chicken: Add the diced chicken to the skillet. Season with Italian seasoning, salt, and pepper. Cook until the chicken is browned and fully cooked, about 5-7 minutes.
4. Create Sauce: Pour in the heavy cream, stirring to combine. Bring the mixture to a gentle simmer and let it cook for 3-4 minutes until slightly thickened.
5. Add Cheese: Remove the skillet from heat and stir in the grated Parmesan cheese until melted and creamy.
6. Combine Pasta: Add the drained rigatoni to the skillet, tossing to coat the pasta in the sauce. If necessary, add reserved pasta water a little at a time to reach your desired sauce consistency.
7. Garnish and Serve: Remove from heat. Plate the Garlic Butter Chicken Rigatoni, garnishing with freshly chopped parsley for a touch of color.

By following these straightforward steps, you will have a scrumptious dish that impresses with both flavor and presentation.