The cheesesteak was developed in the early 20th century "by combining frizzled beef, onions, and cheese in a small loaf of bread", according to a 1987 exhibition catalog published by the Library Company of Philadelphia and the Historical Society of Pennsylvania.
Cheesesteak dikembangkan pada awal abad ke 20 "dengan menggabungkan daging sapi yang dimasak matang, bawang, dan keju dalam sepotong kecil roti," menurut katalog pameran 1987 yang diterbitkan oleh Library Company of Philadelphia dan Historical Society of Pennsylvania.