I assume you've tried Teri-Aki and found it wanting, it's not conveyor-belt but neither is it unmitigated fish-and-rice: there are all the standard California roll-like things, there's a lovely presumably-Korean beef-wrapped-around-vegetables dish that I used to have for Sunday lunch when there was a gym class that ended Sunday lunchtime, there are several kinds of fiery Japanese curry, and all possible combinations of big or small noodles, fried or in miso soup, with fish, beef, pork or tofu are available.