Steak 'n Shake is a 500-unit diner-style restaurant chain located primarily in the Midwestern and Southern United States. Their headquarters is located in Indianapolis, Indiana. Over 400 Steak 'n Shakes are company-owned and the remaining few are franchised. Typical restaurant locations have both a drive-thru and front-window service, resulting in an atypical mix of fast-food to-go service and diner-style sit-down service. Most Steak 'n Shake restaurants are open 24 hours a day. Their slogan "Famous for Steakburgers" refers to their signature menu item, the Steakburger, so called because it is made from a mixture of T-bone, sirloin, and round steak. Steak 'n Shake's prices had been comparable to diners and other sit-down food establishments, which were generally higher than fast food restaurants. But recently it has lowered its prices so that it now offers fast food pricing while maintaining the higher food quality which its customers expect.