Steak 'n Shake is a 500-unit diner-style restaurant chain located primarily in the Midwestern and Southern United States. headquartered in Indianapolis, Indiana. Over 400 Steak 'n Shakes are company-owned and the remaining ones are franchised. Typical restaurant locations have both drive-through and front-window service, resulting in an mixture of fast-food to-go service and diner-style sit-down service. Many Steak 'n Shake restaurants are open 24 hours a day. The corporation's slogan "Famous for Steakburgers" refers to its most prominent food item, the "Steakburger", so called because it is made from a mixture of T-bone, sirloin, and round steaks. 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 the company has lowered its prices.