In a large skillet over medium-high heat, cook ground beef (or sausage) until no longer pink. Drain any fat.
Stir in the pasta and alfredo sauce, cooking until the sauce is hot.
Spread 1 cup of sauce mixture in the bottom of a 9x13-inch baking dish.
Layer half of the frozen ravioli in the bottom of the baking dish (no need to defrost). Spread half of the remaining sauce, followed by 1 cup of cheese. Top with a second layer of the remaining ravioli and meat sauce.
Cover and bake for 30 minutes. Uncover, top with remaining cheese, and bake for 15-20 minutes more until bubbly and heated through. Broil for 2-3 minutes to brown the cheese if desired.
Notes
Leftovers can be stored in an airtight container in the fridge for up to 4 days. Reheat in the oven or in the microwave until heated through.