Copycat Macaroni Grill's Penne Rustica is a rich and flavorful pasta dish that is sure to impress. The penne pasta is tossed in a creamy sauce made with heavy cream, Parmesan cheese, and garlic. It is then topped with grilled chicken, shrimp, and pancetta for added protein and flavor. This dish is perfect for a special occasion or when you want to treat yourself to a restaurant-quality meal at home.