Tsurudontan Hommachi is a Japanese restaurant in Hommachi, Osaka, serving thick-noodle udon and curry udon. Its nabeyaki udon and sukiyaki udon come in bowls as large as washbasins, and the noodle thickness and portion size can be changed. Orders are placed on a table tablet, and seats are nearly full after 8 p.m. on weekdays. Seating is on tatami cushions at floor level, which can be uncomfortable.