A Hero Sandwich, also known as a submarine sandwich or hoagie, is a type of sandwich made with a long roll of bread filled with various ingredients. Common fillings include meats like ham, turkey, or salami, along with cheeses, vegetables, and condiments. The sandwich is typically served cold, but it can also be toasted. The Hero Sandwich is popular in many regions, especially in the northeastern United States. It is often enjoyed as a quick meal or snack and can be customized to suit individual tastes. Variations may include different types of bread and a wide range of toppings.