Pot pie is easy to make, cheap, filling and fairly easy to clean up. I made this a few weeks before going on a camping trip in Wekiva Springs. The camp sites required kayaking, so we wanted things to be as non perishable as posible as hauling ice up a river isn't entirely fun.
1 Can of Veg All
1 Can of Stewed Tomatoes
1 Can of Kidney Beans
A few potatoes (I like extra potatoes)
A tube of biscuits (or make your own biscuit dough)
Some sort of meat (chicken, beef, pork, lamb, etc.)
Using a dutch oven is nice - but any pot that can go in the oven is just fine. If you're cooking over a fire, you'll probably want to use a dutch oven (if you like camping, it's a solid investment).