Heat oven to 400° F. Heat large nonstick over medium heat until hot. Add ground beef and garlic; cook 8 to 10 minutes, breaking into 3/4-inch crumbles and stirring occasionally. Remove from skillet with slotted spoon; pour off drippings and return be
Stir in salt, nutmeg and pepper; mix well. Stir in pasta and water; bring to a boil. Cook 1 to 2 minutes, stirring occasionally.
Layer ravioli, beef mixture and cheese, 1/2 at a time, in 13x9-inch glass baking dish; cover with aluminum foil. Bake in 400° oven 15 minutes (20 minutes if using frozen ravioli). Uncover; continue baking 15-20 minutes or until sauce is bubbly and pa