The Breakthrough Better-Chicken Brand Opens its Third North Dakota Location in Fargo. August 10, 2022 // Franchising.com // FARGO, N.D. - Slim Chickens, a leading fast casual franchise, which features dine-in and drive-thru service in the better-chicken segment, announced today its new restaurant opening at 4477 30th Ave. South in Fargo. Preferred Restaurant Group, a seasoned multi-unit operating group, is at the helm of the third restaurant location in North Dakota.