This "city" sandwich consists of thin slices of beef, slices of American, & often sauteed onions on a roll
... with thinly sliced steak that's cooked on a hot griddle with onions... [DOC] [TLE] sandwich.md  GitHub [PAR] Sometimes of lunch meat with thin slices German sandwich prepared simple and 
... with the ends the sandwich filling tightly wrapped around (often a tortilla) toast.