We loved this and it was so easy. We just served it with Garlic Bread and a salad.
1 lb cooked frozen meatballs, thawed
1 onion chopped
26 oz jar spaghetti sauce
1 1/2 c water
8 oz spaghetti, uncooked and broken into 3 inch pieces
Combine meatballs, spaghetti sauce, onion and water in a slow cooker. Cover and cook on low setting for 6 to 8 hours. Stir well; add broken spaghetti. Increase to high setting; cover and cook for an additional hour, stirring once during cooking. Serve sprinkled with Parmesan cheese.