No, we don't tent camp, but we do have the world's smallest tent trailer (or at least, it feels like it with all these people!). It's seriously small - the box is 6x6ish only, no fridge (although it has an in-and-out stove), barely any storage, etc. So things are very lean in terms of equipment. We bought it several kids ago, so it's probably time to upgrade.
Some more great ideas on here! We tried a few of them this past weekend (par-cooked bacon was a hit, finished in the frying pan and then tossed some eggs to fry in the bit of bacon grease... yum! as was the chicken-on-a-stick, prepared at home with marinade and frozen, thaw in cooler then cook over fire), and we've got a "big trip" coming up where we're gone for most of a week.
ebrandon rocks! So many good ideas!