The Prime Quarter Steak House is a-grill-your own steak house with locations in Wisconsin and central Illinois. Customers can choose from the finest cuts of Usda choice beef and an array of seafood selections, which are grilled by customers on a hickory charcoal grill. The restaurant also features an unlimited salad bar, baked potatoes and Texas-style toast. The Prime Quarter also offers a full assortment of ingredients grill-side. Menu items include T-bone steaks, top sirloin, filet mignon, fish and Kansas City strip steak. The restaurant has more than six locations, including Appleton, Wis. The Prime Quarter Steak House began as a single location in Madison, Wis.