I, for one, can't stand cooking loads of crap when I'm camping! My fav's, though, are...
Take your steak and cut it into bite size pieces. place in a container with your favorite marinade. You can cook this easily over the fire and every piece is perfectly marinaded and charred on all sides. Bring cut up vegies, and you have a shishcabob!
Fresh caught trout over the fire - onions, garlic, lemon and salt and pepper are neccessities, but try cooking with fresh mountain berries for something different!
Oysters off the beach - cook over the fire until the shell starts to open. A little beer, hot sauce or garlic butter are great to add at this point. let cook for another minute or two.
I own a health food store, so don't tell anyone I said this, but... what the heck is camping without the s'mores? <img src="/forums/images/graemlins/oink.gif" alt="" />