Hamburger in the context of Patty

McDonald's Corporation, doing business as McDonald's, is an American multinational fast food restaurant chain. As of 2024, it is the second-largest by number of locations in the world, behind the Chinese chain Mixue Ice Cream & Tea.

Brothers Richard and Maurice McDonald founded McDonald's in San Bernardino, California, in 1940 as a hamburger stand. They soon franchised the company. The Golden Arches logo was introduced in 1953. In 1955, the businessman Ray Kroc joined McDonald's as a franchise agent; he bought the company in 1961. In the years since, it has expanded internationally. Today, McDonald's has more than 40,000 restaurant locations worldwide, with around one-quarter in the US.

KFC Corporation, doing business as KFC (an abbreviation of Kentucky Fried Chicken), is an American multinational fast food restaurant chain specializing in Southern fried chicken and chicken sandwiches. Headquartered in Louisville, Kentucky, it is the world's second-largest restaurant chain (as measured by sales) after McDonald's, with over 31,980 locations globally in 150 countries, as of September 2025. The chain is a subsidiary of Yum! Brands, a restaurant company that also owns the Pizza Hut and Taco Bell chains.

KFC was founded by Colonel Harland Sanders (1890–1980), an entrepreneur who began selling fried chicken from his roadside restaurant in Corbin, Kentucky, during the Great Depression. Sanders identified the potential of the restaurant-franchising concept, and the first "Kentucky Fried Chicken" franchise opened in South Salt Lake, Utah, in 1952. KFC popularized chicken in the fast-food industry, diversifying the market by challenging the established dominance of the hamburger. By branding himself as "Colonel Sanders", Harland became a prominent figure of American cultural history, and his image remains widely used in KFC advertising to this day. However, the company's rapid expansion overwhelmed the aging Sanders, and he sold it to a group of investors led by John Y. Brown Jr. and Jack C. Massey in 1964.

Ketchup or catsup is a table condiment with a sweet and sour flavor. "Ketchup" now typically refers to tomato ketchup, although early recipes for different varieties contained mushrooms, oysters, mussels, egg whites, grapes, or walnuts, among other ingredients.

Tomato ketchup is made from tomatoes, sugar, and vinegar, with seasonings and spices. The spices and flavors vary but commonly include onions, allspice, coriander, cloves, cumin, garlic, mustard and sometimes include celery, cinnamon, or ginger. Tomato ketchup is often used as a condiment for dishes that are usually served hot, and are fried or greasy: e.g., french fries and other potato dishes, hamburgers, hot dogs, chicken tenders, hot sandwiches, meat pies, cooked eggs, and grilled or fried meat.

Grilling is a form of cooking that involves heat applied to the surface of food, commonly from above, below or from the side. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), using a cast iron/frying pan, or a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill).

Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction. In the United States, when the heat source for grilling comes from above, grilling is called broiling. In this case, the pan that holds the food is called a broiler pan, and heat transfer is through thermal radiation.

Fast food is a type of mass-produced food designed for commercial resale, with a strong priority placed on speed of service. Fast food is a commercial term, limited to food sold in a restaurant or store with frozen, preheated or precooked ingredients and served in packaging for take-out or takeaway. Fast food was created as a commercial strategy to accommodate large numbers of busy commuters, travelers and wage workers. In 2018, the fast-food industry was worth an estimated $570 billion globally.

The fastest form of "fast food" consists of pre-cooked meals which reduce waiting periods to mere seconds. Other fast-food outlets, primarily hamburger outlets such as McDonald's and Burger King, use mass-produced, pre-prepared ingredients (bagged buns and condiments, frozen beef patties, vegetables which are pre-washed, pre-sliced, or both; etc.) and cook the meat and french fries fresh, before assembling "to order".

Japanese cuisine encompasses the regional and traditional foods of Japan, which have developed through centuries of political, economic, and social changes. The traditional cuisine of Japan (Japanese: washoku) is based on rice with miso soup and other dishes with an emphasis on seasonal ingredients. Side dishes often consist of fish, pickled vegetables, tamagoyaki, and vegetables cooked in broth. Common seafood is often grilled, but it is also sometimes served raw as sashimi or as sushi. Seafood and vegetables are also deep-fried in a light batter, as tempura. Apart from rice, a staple includes noodles, such as soba and udon. Japan also has many simmered dishes, such as fish products in broth called oden, or beef in sukiyaki and nikujaga.

Historically influenced by Chinese cuisine, Japanese cuisine has also opened up to influence from Western cuisines in the modern era. Dishes inspired by foreign food—in particular Chinese food—like ramen and gyōza, as well as foods like spaghetti, curry and hamburgers, have been adapted to Japanese tastes and ingredients. Traditionally, the Japanese shunned meat as a result of adherence to Buddhism, but with the modernization of Japan in the 1880s, meat-based dishes such as tonkatsu and yakiniku have become common. Since this time, Japanese cuisine, particularly sushi and ramen, has become popular globally.

A cafeteria, called canteen outside the U.S., is a type of food service location in which there is no waiting staff table service. Cafeterias are different from coffeehouses, although the English term came from the Spanish term cafetería, which carries the same meaning.

Instead of table service, there are food-serving counters/stalls or booths, either in a line or allowing arbitrary walking paths. Customers take the food that they desire as they walk along, placing it on a tray. In addition, there are often stations where customers order food, particularly items such as hamburgers or tacos.

Beef is the culinary name for meat from cattle (Bos taurus). Beef can be prepared in various ways; cuts are often used for steak, which can be cooked to varying degrees of doneness, while trimmings are often ground or minced, as found in most hamburgers. Beef contains protein, iron, and vitamin B12. Along with other kinds of red meat, high consumption is associated with an increased risk of colorectal cancer and cardiovascular disease, especially when processed. Beef has a high environmental impact, being a primary driver of deforestation with the highest greenhouse gas emissions of any agricultural product.

In prehistoric times, humans hunted aurochs and later domesticated them. Since that time, numerous breeds of cattle have been bred specifically for the quality or quantity of their meat. Today, beef is the third most widely consumed meat in the world, after pork and poultry. As of 2018, the United States, Brazil, and China were the largest producers of beef.

The Big Mac Index is a price index published since 1986 by The Economist as an informal way of measuring the purchasing power parity (PPP) between two currencies and providing a test of the extent to which market exchange rates result in goods costing the same in different countries. It "seeks to make exchange-rate theory a bit more digestible." The index compares the relative price worldwide to purchase the Big Mac, the flagship hamburger sold at McDonald's restaurants.

A sandwich is a dish typically consisting variously of meat, cheese, sauces, and vegetables used as a filling between slices of bread, or placed atop a slice of bread; or, more generally, any dish in which bread serves as a container or wrapper for another food type. The sandwich began as a portable, convenient food in the Western world, and over time it has become prevalent worldwide.

There has been social media debate over the precise definition of sandwich, specifically whether a hot dog or open sandwich can be categorised as such. Other items, like hamburgers and burritos, were also considered. In the United States, the Department of Agriculture (USDA) and the Food and Drug Administration (FDA) are the responsible agencies for protecting the definition of sandwich. The USDA uses the definition, "at least 35% cooked meat and no more than 50% bread" for closed sandwiches, and "at least 50% cooked meat" for open sandwiches. However, the same USDA manual determines that burritos and fajitas are "sandwich-like" and frankfurters are "sandwich type", while stromboli is explicitly excluded. In Britain, the British Sandwich Association defines a sandwich as "any form of bread with a filling, generally assembled cold"; a definition which includes wraps and bagels, but potentially excludes dishes assembled and served hot, such as burgers.

Burger King Corporation (BK, stylized in all caps) is an American fast food chain of hamburger fast food restaurants. Burger King is headquartered in Miami-Dade County, Florida, the company was founded on July 23, 1953, as Insta-Burger King, a Jacksonville, Florida–based restaurant chain. After Insta-Burger King ran into financial difficulties, its two Miami-based franchisees David Edgerton (1927–2018) and James McLamore (1926–1996) purchased the company in 1959. Over the next half-century, the company changed hands four times and its third set of owners, a partnership between TPG Capital, Bain Capital, and Goldman Sachs Capital Partners, took it public in 2002. In late 2010, 3G Capital of Brazil acquired a majority stake in the company in a deal valued at US$3.26 billion. The new owners promptly initiated a restructuring of the company to reverse its fortunes. 3G, along with its partner Berkshire Hathaway, eventually merged the company with the Canadian-based coffeehouse chain Tim Hortons under the auspices of a new Canadian-based parent company named Restaurant Brands International.

Burger King's menu has expanded from a basic offering of burgers, french fries, sodas, and milkshakes to a larger and more diverse set of products. In 1957, the "Whopper" became the first major addition to the menu, and it has since become Burger King's signature product. Conversely, Burger King has introduced many products that have failed to catch hold in the market. Some of these failures in the United States have seen success in foreign markets, where Burger King has also tailored its menu for regional tastes. From 2002 to 2010, Burger King targeted the 18–34 male demographic with larger products that often carried correspondingly large amounts of unhealthy fats and trans-fats. This tactic would eventually damage the company's financial underpinnings and cast a negative pall on its earnings. Beginning in 2011, the company began to move away from its previous male-oriented menu and introduce new menu items, product reformulations, and packaging, as part of its current owner 3G Capital's restructuring plans of the company.

A cheeseburger is a hamburger with one or more slices of melted cheese on top of the meat patty, added near the end of the cooking time. Cheeseburgers can include variations in structure, ingredients and composition. As with other hamburgers, a cheeseburger may include various condiments and other toppings such as lettuce, tomato and ketchup.

In fast food restaurants across the United States, processed cheese is usually used, although other meltable cheeses are used, such as cheddar, Swiss, mozzarella, blue cheese, or pepper jack. Virtually all restaurants that sell hamburgers also offer cheeseburgers.

This is a list of notable hamburger variants. A hamburger typically consists of a cooked patty of ground meat usually placed between two slices of a bread roll. Hamburgers are often served with other toppings and condiments. There are many types of regional hamburgers with significant variations.

The Whopper is the signature hamburger brand of international fast food restaurant chain Burger King, its Australian franchise Hungry Jack's, and BK Whopper Bar kiosks. Introduced in 1957 in response to the large burger size of a local restaurant in Gainesville, Florida, it became central to Burger King's advertising, including the chain's tagline "the Home of the Whopper." Burger King's competitors began releasing similar products in the 1970s designed to compete against it.

The hamburger has undergone several reformulations, including changes to portion size and the bread used. Burger King sells several variants that are either limited-time seasonal promotions or tailored to regional tastes and customs. A smaller version called the Whopper Jr. was introduced in 1963.

A food truck is a large motorized vehicle (such as a van or multi-stop truck) or trailer equipped to store, transport, cook, prepare, serve and/or sell food.

Some food trucks, such as ice cream trucks, sell frozen or prepackaged food, but many have on-board kitchens and prepare food from scratch, or they reheat food that was previously prepared in a brick and mortar commercial kitchen. Sandwiches, hamburgers, hot dogs, chicken, tacos, pizza, french fries and other typical fast food and finger food staples are common food truck fare, though since the pop-up restaurant phenomenon of the 2010s, food trucks specializing in a wide variety of gourmet, specialty, global, regional, and fusion cuisines have seen growing popularity. Food trucks often also sell or fully specialize in beverages such as soft drink, juice, coffee, tea, and water, as well as treats such as ice cream, pastries, and fried dough.