A Meatball Sub, short for "meatball sandwich," is a hearty and flavorful sandwich that features meatballs, typically made from ground beef or a combination of meats, served in a sub roll or baguette-style bread. The result is a Meatball Sub that's packed with rich and savory flavors. The tender meatballs, soaked in the tomato sauce, provide a satisfying and meaty bite. The melted cheese, if included, adds creaminess and richness to each bite. The bread adds a pleasant crunch, and the optional toppings provide additional layers of taste and texture. This sandwich is a beloved classic in Italian-American cuisine and is often enjoyed as a filling and comforting meal.