Relish in the context of Ketchup

A hamburger, often known as a burger, consists of fillings—usually a patty of ground meat, typically beef—placed inside a sliced bun, sesame seed bun, or bread roll. The patties are often served with lettuce, tomato, onion, pickles, bacon, or chilis. The filling of the burger can be topped with condiments such as ketchup, mustard, mayonnaise, relish or a "special sauce", often a variation of Thousand Island dressing. A burger with the patty topped with cheese is called a cheeseburger. Under some definitions, a hamburger is considered a sandwich.

Hamburgers are typically associated with fast-food restaurants and diners but are also sold at other restaurants, including high-end establishments. There are many international and regional variations of hamburgers. Some of the largest multinational fast-food chains feature burgers as one of their core products: McDonald's Big Mac and Burger King's Whopper have become global icons of American culture.

A hot dog is a grilled, steamed, or boiled sausage served in the slit of a partially sliced bun. The term hot dog can also refer to the sausage itself. The sausage used is a wiener (Vienna sausage) or a frankfurter (Frankfurter Würstchen, also just called frank). The names of these sausages commonly refer to their assembled dish. Hot dog preparation and condiments vary worldwide. Common condiments include mustard, ketchup, relish, onions in tomato sauce, and cheese sauce. Other toppings include sauerkraut, diced onions, jalapeños, chili, grated cheese, coleslaw, bacon and olives. Hot dog variants include the corn dog and pigs in a blanket. The hot dog's cultural traditions include the Nathan's Hot Dog Eating Contest and the Oscar Mayer Wienermobile.

These types of sausages were culturally imported from Germany and became popular in the United States. It became a working-class street food in the U.S., sold at stands and carts. The hot dog has become closely associated with baseball and American culture. Although particularly connected with New York City and its cuisine, the hot dog eventually became ubiquitous throughout the US during the 20th century. Its preparation varies regionally in the country, emerging as an important part of other regional cuisines, including Chicago street cuisine.

Tuna salad is a salad dish consisting of tuna and mayonnaise. The tuna used is usually pre-cooked, canned, and packaged in water or oil. Pickles, celery, relish, and onion are popular ingredients to add. Tuna salad is used to make tuna fish sandwiches; it can also be served on top of crackers, lettuce, tomato, or avocado (or else served by itself).