- 1 cup spaghetti sauce
- 1/2 cup water
- 2 tablespoons KRAFT Grated Parmesan Cheese
- 3/4 pound frozen cooked meatballs
- 4 crusty sandwich rolls, split
- 3/4 cup KRAFT Shredded Mozzarella Cheese
- Combine first 4 ingredients in large skillet. Bring to boil on medium-high heat, stirring occasionally.
- Simmer on medium heat 8 min. or until meatballs are heated through, stirring occasionally.
- Spoon into rolls; top with mozzarella.