On this Wikipedia the language links are at the top of the page across from the article title. A cheeseburger is a hamburger topped with cheese. Traditionally, the cheeseburger rice casserole of cheese is placed on top of the meat patty.
The cheese is usually added to the cooking hamburger patty shortly before serving, which allows the cheese to melt. Cheeseburgers can include variations in structure, ingredients and composition. In fast food restaurants, the cheese used in cheeseburgers is usually processed cheese. Other meltable cheeses may be used as alternatives.
By the late 19th century, the vast grasslands of the Great Plains had been opened up for cattle ranching. This made it possible for many Americans to consume beef almost daily. The hamburger remains as one of the cheapest sources of beef in America. Adding cheese to hamburgers became popular in 1920. There are several competing claims as to who created the first cheeseburger. Lionel Sternberger is reputed to have introduced the cheeseburger in 1924 at the age of 16.