Changgo 43 Gangnam is a Hanwoo beef restaurant about a 10 to 15 minute walk from Gangnam Station. The Changgo set consists of deungsim and ansim along with Changgo galbisal, grilled on a cast-iron pan, and the meal finishes with doenjang mari. The dining area is underground, with private rooms and a separate waiting area, and the space is large enough for small groups up to gatherings of eight or more. Walking in without a reservation means a long wait.