Hanau Udon is a restaurant near Gangnam Station Exit 5 that serves udon, naeng momil, donkatsu, and cheolpan bokkeum bap. Although it is an udon shop, cheolpan bokkeum bap has become its signature menu, and the naeng momil broth is on the rich side. Food comes out quickly after ordering, and a single serving is generous. Seating is cramped.