Udo Ok is a Korean restaurant near Samseong Station in Seoul that serves two-bul hanwoo, naengmyeon, and gomtang. The signature two-bul deungsim bulgogi is grilled by staff at the table, and jeolpyeon deungsim pairs thinly sliced meat with rice cake wraps. The hall is divided by partitions and has many rooms, suiting family gatherings and business meals. The naengmyeon comes with a dropper of mustard and vinegar.