Hakodate, Hokkaido
The typical way it is served is to have these "noodles" heaped in a bowl (donburi), accompanied by grated ginger and soy sauce, or a soy sauce-based noodle sauce, called mentsuyu. Lately it may also be served on a flat dish even in Hakodate, Hokkaido, and eaten with wasabi and soy sauce, which is then no different from squid sashimi "ito-zukuri" style.