Filling in a tobiko maki roll (3)

I believe the answer is:

roe

(Other definitions for roe that I've seen before include "A mass of fish-eggs" , "eg Caviare" , "If hard, eggs" , "Caviar" , "shy animal" .)

I've seen this clue in the LA Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.