Hi D.!
You can do some cooking ahead so you can enjoy your trip too.
My favorite is to make shishkabobs on bamboo skewers then put them in a gallon baggie. Add a marinade & freeze them flat. They can thaw in your cooler and you can serve them the second day out. It's especially nice because you will actually get yummy veggies while camping, something that often doens't happen. You will probably need to double bag them as the pointy ends will probably pierce the bag. To make kabobs, chop up large bite-size pieces of chicken, pork or steak, and veggies you like to eat grilled - mushrooms, bell peppers, vidalias (they rock grilled!), zucchini & summer squash, grape tomatoes. whatever you enjoy eating grilled. The construction is a little time consuming but worth is. I've found it's easier to flip them if you double up on the skewers per kabob that way the food won't just spin on the skewer when you try to flip it.
Another option is to pre-beer boil your brats & get them ready for the grill. To do this you put half a pot of water & a can or bottle of beer into a pot. Pierce your bratwursts & put them in to boil until they're cooked. Later you grill them to make them brown & a little crips. Serve with grilled corn and you're all set!
I like to pre-bake my chicken for the grill so it cooks faster and you don't get the yucky red parts near the bone. You could pre-bake chicken so you can just plop 'em on the grill and add your favorite bbq sauce.
If you don't already have one, I HIGHLY recommend a grill pan for your veggies. They're excellent. I chop up whatever we're eating and put them into a gallon baggie then add a little olive oil & seasoning. When the grill is hot & the pan is ready, you shake up your bag & pour it onto the pan on the grill. That way the oil doesn't end up on your counter and they shouldn't stick as much to the pan. Vidalia onions taste sooooo good grilled. So do mushrooms, red peppers, zucchini & summer squash, red onions, green peppers. YUM!
For a treat, my dh's family does a great thing they call pies - you get pie irons in the camping section of any big store (Target has them). They're bread-sized things on a long stick with a handle. You butter the outside of the bread, put one in the bottom (butter side against the pan), add some yummy canned pie filling, or dh has since learned he likes peanut butter with chocolate chips, what can I say he's a big kid! lol. Anyway add your filling, then put the other piece butter side up and seal the top of it & cook in a bonfire. They're a lot of fun for kids of all ages. I bet they'd work for grilled cheese, too, now that I think of it.
Have fun!
D.