Steak 'n Shake
Founded in Illinois, this chain is thoroughly Midwestern despite its current geographical reach. It might claim to be "Famous for Steakburgers," but some of the best parts of this franchise don't have anything to do with meat. Their thin fries are extra crispy — until you load them with cheese and bacon. Steak 'n Shake also dares to ask the decadent question, why would you have just one shake when you can have two side-by-side?