Cold pizza isn't as good as fresh, hot pizza, but is still good.

Cold KFC, now that is arguably just as good as fresh, hot KFC. Man, having that for breakfast can be just amazing sometimes. xD

My favourite leftovers are roast chicken (put it into sandwiches with gravy, nom nom nom) and lasagne, though. Two things I rarely have these days, particularly the latter as Danielle doesn't eat beef, so...