Anything you can do on the stove or a grill at home to remain OP you can do camping. It is really as simple as that. It just takes planning. I am usually a hit at the campsite because I use many of the packet cooking recipes at
http://www.reynoldskitchens.com/ you can make them ahead and freeze them and put them together in a ziplock bag and let them thaw in the cooler (2 things happen you have great meals and they help keep other foods cold) and then do them on the grill.
You can do the traditional things such as hot dogs (using fat-free or low fat ones with light buns) and hamburgers (92% or leaner beef). Baked Doritos or potato chips rather than the full fat versions.
You can take fruit.
Breakfasts are easy too....Egg beaters, center cut or turkey bacon, simply potatoes hashbrowns.
Sandwiches are good too.
See it really isn't any different than cooking at home.