Last time I went camping, we made a vegetable casserole a few days before hand and froze it in those plastic lunch box sized containers. We were only gone for a long weekend, and by the time we were ready for dinner they just needed a little reheating over the fire. It was great to not eat junk all weekend! We also bought lots of nuts with us, and snacked on fruit while driving to and from the camp spot (6 hour drive each way).

HTH .