sentences:  According to the episode "The Mook, the Chef, the Wife and Her Homer", Krusty Burger is one of the only burger places open in Springfield because Krusty has been paying mobster Fat Tony to keep McDonald's and Burger King from establishing local locations.The extent of Fat Tony's involvement is unknown, as there are no locations of Wendy's, and other major chains.However, Springfield does have an In-N-Out Burger location in town to compete with Krusty Burger.