Melt butter in a large skillet over medium heat. Saute garlic until golden brown and fragrant, about 1 minute. Be careful not to burn.Stir in chicken broth, milk, and Barilla Pronto Spaghetti and increase heat to high. Cook, stirring occasionally, until pasta is cooked and most of the liquid is absorbed.Stir in the cheese and the frozen chicken. Allow to cook for a couple minutes more until chicken is thawed and warm. Serve and enjoy!