Do I have to discard leftover sushi? We had a party Monday night and ordered Sushi for 20 people - about 25 percent of the Sushi went uneaten, mostly plain rolls like tuna and yellow tail.  I would hate to throw out 10+ rolls - any suggestions?
I'm assuming these rolls contain raw fish. If that's the case I'd urge you not to eat them raw the following day. It might be safest to just throw it out, but you could try deep frying them in a light tempura batter. Just a few minutes should be enough to cook the fish.