The fact that Robert Downey Jr is threatening to leave Marvel unless Chris Evans, Chris Hemsworth, Scarlett basically all his Marvel buddies get a pay raise really shows you that he is a great man, a human being, and never thinks of himself above others even if he jokes that he is above everyone else all the time.
So I was reading up on Avengers trivia and apparently RDJ kept food hidden all over this set and they couldn’t find where it was so they just kinda let him continue doing it. So that’s his actual food he’s offering and whenever he’s eating in a scene, it’s not scripted. He was just hungry.
Even more proof that RDJ is really Tony Stark.