A cheesesteak is a sandwich made from thinly sliced pieces of beefsteak and melted cheese in a long hoagie roll. A popular regional fast food, it has its roots in the U.S. city of Philadelphia, Pennsylvania.

A sandwich is a food typically consisting of vegetables, sliced cheese or meat, placed on or between slices of bread, or more generally any dish wherein bread serves as a container or wrapper for another food type. The sandwich began as a portable, convenient finger food in the Western world, though over time it has become prevalent worldwide.