Pot Luck

Try rice with some kind of meatballs maybe? and then bring some sauce in a separate bottle, so that they dont know soggy, but they won't spoil if you have them covered properly either. :)

Macaroni Saladdddd!

Try asking a teacher or someone if you can use the fridge in the teacher's lounge or something...Maybe they'll let you...(I don't know) and then you could make whatever you wanted and it would stay fresh.