You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
Q: Category: SU-SU-SUSHI-O
Clue: Before you have your sushi, try some miso soup, which usually has green onions & cubes of this in it
A:
tofu