There are many great recipes available for backcountry camping online, most notable to me are the recipes listed Canadian Canoe Routes many of which I’ve used. Rather than posting recipes here, I will post a sample menu from one of the trips I planned. Beware, it’s quite extravagant.
I have an Ostrom Barrel Cooler (unfortunately no longer being made) that helps to keep a few of the food items cold for the first couple of days. I would freeze whatever I can to keep other items cool.