Hamburgers

A hamburger (also known as simply a burger) is a sandwich consisting of a cooked patty of ground meat (usually beef, but occasionally pork or a combination of meats) usually placed inside a sliced bread roll. Hamburgers are often served with lettuce, bacon, tomato, onion, pickles, cheese and condiments such as mustard, mayonnaise, ketchup and relish.[1] The hamburger has attained widespread popularity and has proliferated worldwide.
The term hamburger or burger can also be applied to the meat patty on its own, especially in the UK where the term "patty" is rarely used, although the term "hamburger" is rarely used in the Commonwealth countries (other than Australia) unless referring to a menu item of an American restaurant.