Possibly the simplest method of cooking over a campfire (and one of the most fun!) is to roast food on long skewers above the flames. This is popular for cooking hot dogs or toasting marshmallows, but can be used for all sorts of edibles. If you can stick it on a skewer, you can likely roast it! Think about layering vegetables on skewers or building a tripod spit for large cuts of meat. Remember to pack skewers as foraging for sticks is prohibited and can damage the natural environment.