Cook the rigatoni pasta according to package instructions. Drain and set aside.
In a large skillet, heat the olive oil over medium heat. Add the chicken pieces and season with salt and pepper. Cook until the chicken is browned and cooked through, about 5-7 minutes.
Add the minced garlic to the skillet and sauté for 1 minute until fragrant.
Pour in the chicken broth and bring to a simmer. Let it cook for 2-3 minutes to reduce slightly.
Stir in the heavy cream and bring the mixture back to a gentle simmer.
Add the grated Parmesan cheese and butter, stirring until melted and combined. Season with dried Italian herbs, salt, and pepper to taste.
Add the cooked rigatoni to the skillet and toss to coat in the creamy sauce.
Serve hot, garnished with chopped fresh parsley.
Notes
For a lighter version, you can use half-and-half instead of heavy cream.