A Gatsby is a South African sandwich very similar in content and method of preparation as a hoagie in the United States. It is mostly popular in the Western Cape province.
Gatsbies usually consist of long bread rolls cut lengthwise and opened up to form a sort of cradle which is filled with various fillings. While the choice of filling in a Gatsby varies widely depending on customer preference and vendor, one standard item is usually hot chips i.e. French fries.
Gatsbies originated in the Cape Flats area of Cape Town, where people would often buy large rolls and fill them with whatever leftovers they had, and split them four ways. This practice has carried on in modern times, with gatsbies being bought in full, half or quarter sizes.
Rashaad Pandy—the proprietor of a fish and chips fast food store called Super Fisheries located in Athlone, Cape Town—claims to have invented it one night in 1976, when he tried to feed some day labourers after he had run out of fish.