Steak 'n Shake Operations, Inc. is a casual restaurant chain. It is headquartered in Indianapolis, Indiana. There are more than 400 company-owned Steak 'n Shakes and more than 100 or so that are franchised. Typical restaurant locations have sit-down, drive-thru and front-window service, resulting in a hybrid of fast-food to-go service and diner-style sit-down service