I forgot all about this one. It should be right up your alley, Buzz, given your east coast lifestyle. I have always wanted to try it.
This Brilliant Twist on a Classic Clam Boil Is the Best Dinner I’ll Have All Summer
If you are looking for foil packet meals, this one looks promising: You could season the chicken ahead of time, pre-grate the cheese, and cook the bacon ahead of time. Do not cut the potatoes ahead of time, as they will blacken. I would also caution against pre-chopping the onion, as then your whole cooler will smell like onion. Just carry a whole onion and chop it up when you are assembling things.
Chicken Foil Packet
You could also do a baked potato bar: bring some chili or pulled pork, have cheese, butter, sour cream, bacon, chives, steam some broccoli, seasonings, whatever. Scrub potatoes at home and par-bake them so that at the campsite you just finish cooking/warming them (kind of like twice-baked potatoes, which is another good option) and then they can be topped however people like.
Here is a post on
how to steam broccoli when camping.
Walking tacos (may go by other names elsewhere) would be easy to prep. Pre-cook your taco meat and freeze, grate the cheese, grab some salsa and other taco toppings, and then get enough bags of Doritos for each person. You can do the same thing, but with nachos, heating up the chips and cheese in a cast iron frying pan or Dutch oven and then having the other toppings (sour cream, salsa, etc. ready to go. Toss on your taco meat, if you want.
The other thing that is awesome when you are camping, but which I didn't mention previously, as it isn't really a recipe, is to take cold pizza along. Pizza that is warmed up in foil over the campfire really hits the spot after an afternoon of hiking or whatever. You can make pizza ahead or just pick up an extra pizza at some point before your trip and freeze some slices.