There are many theories to the beginning of the cheeseburger dating back to the 1920s.  One story suggests that Lionel Sternberger is reputed to have invented the cheeseburger in 1926 while working at his father’s Pasadena, California sandwich shop, The Rite Spot.  During an experiment, he dropped a slice of American cheese on a sizzling hamburger.

There are other claims of the invention of the cheeseburger: A cheeseburger appeared on a 1928 menu at O’Dell’s, a Los Angeles restaurant, which listed a cheeseburger, smothered with chili, for 25 cents. Kaelin’s Restaurant – Louisville, Kentucky says it invented the cheeseburger in 1934.