Oakwood Staff Cafeteria is a buffet-style canteen on the right after entering through the west gate of COEX and taking the escalator down. The menu changes daily, with lunch items such as jeyuk, namul, and doenjang jjigae, and you serve everything except the main side dish yourself. You pay in cash at a ticket machine and go through hand sanitizing and a QR code check when entering. After a price increase, it is on the expensive side for a staff cafeteria.