Rajang Yanggalbi Yangkkotchi Unlimited Refill Gangnam is a lamb barbecue restaurant near Gangnam Station that serves all-you-can-eat lamb chops and lamb skewers. Diners pick their own lamb chops, lamb skewers, and sirloin. Each person gets one dish and a side menu, while the meat is unlimited. Meal dishes arrive late even after the order is confirmed several times.