Well I just got a new favourite Kilbanos, they are a smoked polish sausage a polish food shop has opened up near where I work and I get bags and bags of them really cheep
Or I just use my hands you are meant to eat them cold, but you can heat them up and have them on a bun, there is polish recipe book written in english I will pick it up and see what else you can do with them.
When gaming I don't eat cuz it's distracting plus it'll pack on some pounds/stones since you aren't doing anything physically demanding but when I do eat while gaming it's usually something like chips and water or sometimes General Tso's Chicken.
Ill drink a coca cola and I suck on creme savers while gaming. If Im not having candy I usually just get myself a tuna sandwitch or peanut butter and helly sandwhich.