I take all sorts of salads, cheese and crackers, baked beans (which I heat in our microwave), soup, dairylea dunkers, jacket potatoes, fruit and the odd bag of wotsits or quavers.
I love taking salads, especially in this hot weather. I make it up the night before and usually buy the salad bags which makes it even easier and quicker to put together. I also make large bowls of homemade coleslaw, coucous etc. I try and vary what I have with my salad; goats cheese with olives and red onion; sliced ham/chicken; prawns; tuna etc.
What stage are you at foodwise?