Hamburger, a sandwich consisting of one or more cooked beef patties, placed inside a sliced bread roll or bun roll.
Cheeseburger, a hamburger with added cheese(s)
Ground beef, minced beef used to make hamburgers
Patty, a portion of ground meat, often round, used to make burgers
Rice burger, uses compressed rice cakes instead of hamburger buns
Veggie burger, a burger made with plant-based meat substitute
Afghani burger, an Afghan fast food wrap consisting of a piece of Afghan bread rolled around french fries, along with chutney and other condiments, vegetables, and often sausages or other meat.
A hamburger, or simply burger, is a sandwich consisting of fillings—usually a patty of ground meat, typically beef—placed inside a sliced bun or bread roll. Hamburgers are often served with cheese, lettuce, tomato, onion, pickles, bacon, or chilis; condiments such as ketchup, mustard, mayonnaise, relish, or a "special sauce," often a variation of Thousand Island dressing; and are frequently placed on sesame seed buns. A hamburger patty topped with cheese is called a cheeseburger.[1]
The term burger can also be applied to the meat patty on its own, especially in the United Kingdom, where the term patty is rarely used or can even refer to ground beef. Since the term hamburger usually implies beef, for clarity burger may be prefixed with the type of meat or meat substitute used, as in beef burger, turkey burger, bison burger, portobello burger, or veggie burger. In Australia and New Zealand, a piece of chicken breast on a bun is known as a chicken burger, which would generally not be considered to be a burger in the United States; Americans would generally call it a chicken sandwich, but in Australian English and New Zealand English a sandwich requires sliced bread (not a bun), so it would not be considered a sandwich.[2][3]
Hamburgers are typically sold at fast-food restaurants, diners, and other restaurants. There are many international and regional variations of hamburger.

