This is something you can do in your backyard or simplify it for a campsite. They even show you how to build a fire ring.
Most of the recipes are just like cooking at home but using the open fire for your heat source.
I found this site to be great for teaching me how to use and care for cast iron and how to get the temperature just right from an open fire. Also how to make cakes and other tricks to cooking over the open fire.