Dugg Burger, which is known in East Dallas for serving burgers in a hollowed-out bun, is planning on opening a new location at 7949 Walnut Hill Ln. #120 this spring, according to Teresa Gubbins at Culture Map. Choose a burger on a brioche bun or place it on a bowl of green. In addition to beef, you can get chicken or portabella mushroom caps. Save room for the hand-scooped milkshake.