One Pot Ravioli Alfredo

1 package (12 oz) refrigerated cheese-filled ravioli or tortellini 

1 cup heavy whipping cream

5 tablespoons unsalted butter

1 cup grated Parmesan cheese 

2 cups diced deli rotisserie chicken

Chopped fresh parsley

Cook 1 package refrigerated cheese-filled ravioli or tortellini as directed on package, reserving 1 cup of the cooking water when draining. Set cooked pasta aside. Add 1 cup heavy whipping cream and 5 tablespoons unsalted butter to the empty saucepan over medium-high heat; simmer 3 to 5 minutes or until slightly reduced. Stir in 1 cup grated Parmesan cheese until melted. Mix in the cooked tortellini, 2 cups diced deli rotisserie chicken, and about 1/2 cup of the reserved cooking water, adding more if needed to adjust the consistency of the sauce. Garnish with parsley.