The cheesesteak, known outside the Philadelphia, Pennsylvania area as the Philadelphia cheesesteak, Philly Steak and Cheese, Philly cheesesteak, steak and cheese, or simply a Philly is a sandwich principally of thinly sliced pieces of steak and melted cheese on a long roll. A cheesesteak without cheese is locally called a steak sandwich, or a Philly Steak in other parts of the country.The cheesesteak is a comfort food for natives of the Philadelphia region. It was invented in the city in 1930 and is considered to be a city icon along with other foods such as Tastykakes, water ice, the Philadelphia soft pretzel, hoagies, and scrapple.