A situation where a stereotypical person is eating food that conforms to that stereotype.
Many works depict various types of people - as well as what those people eat. Now, normally, this is all well and good. Sometimes, though, it gets a little out of hand; all "serious" gamers, for example, might be found stuffing their face with soda (Mountain Dew, if they're using brands) and chips, for example. Do we have this one already?