Crusty rolls are filled with ready-made meatballs, simmered in Italian sauce and topped with mozzarella cheese to make these hearty supper sandwiches.
Heat the sauce and meatballs in a 3-quart saucepan over medium-high heat to a boil. Reduce the heat to low. Cook for 20 minutes or until the meatballs are heated through, stirring occasionally.
Spoon the meatballs and sauce into the rolls. Top with the mozzarella and Parmesan cheeses.
This nutritional information refers to each serving of the entire recipe and not just the products used as ingredients.