My favorite meal for camping is chicken fajitas.
Before you leave home, put frozen boneless skinless chicken tenderloins in a zip lock bag and put the marinade in the bag. The chicken will marinate as it thaws. Then slice onions and peppers (green, red, etc) in put in a separate zip lock bag.
take tortillas, shredded cheese, lettuce, sour cream and salsa.
At dinner time at the campground, put the chicken and marinade in a cast iron skillet and cook over hot coals. Add the peppers and onions about 10 minutes before the chicken is done. If you have electricity where you are camping, an electric skillet works really good for this. When the chicken is done, everyone can make up their own fajitas with the other ingredients.
The leftover chicken, onions/pepper, cheese and lettuce can be used the next day for a fajita salad for lunch.
The leftover tortillas can be used with lunch meat for roll ups instead of sandwiches at lunch. We also bring tortilla chips to eat with the leftover salsa.