Legendary Ribs Sangam is a Korean beef restaurant in Sangam-dong that serves thick u-dae galbi. The meat arrives nearly cooked, and staff cut it and finish it at the table. It stays open through break time, so you can eat between lunch and dinner, and all seats are in rooms, with reservations available. The u-dae galbi has a charcoal aroma and a chewy texture, and sweet potato salad comes as a side dish.