What is the oldest fast food franchise?
White Castle opened in Wichita, Kan. in 1921. In addition to being credited with the invention of the hamburger bun, it is also officially recognized as the oldest fast-food chain in America.
Regarding this, Why is steak and Shake so slow? We are timed on the drive thru and corporate says that drive thru must be taken care of as quickly as possible, so food may take a little longer if you dine in at a Steak ‘n Shake.