He oven to 350* Brown meat in large skillet on medium-high heat. Add 1 cup of the sauce and water; bring to a boil. Add stuffing mix,stir just to moisten.Remove from heat. Beat egg in medium bowl, stir in ricotta and parmesan cheeses . Spoon half of the stuffing mixture evenly into 8 inch square baking dish.Spoon half of the cheese mixture over stuffing mixture.Top with half cup each mozzarella cheese and sauce.Repeat layers with remaining stuffing and cheese mixtures,half cup mozzarella cheese. Bake 40 minutes or until hot and bubbly. Let stand 5 minutes.