If you have canned chicken, Veg-all, cream of chicken soup and Bisquick you can whip up a decent chicken pot pie.
And who could forget how simple tuna casserole is with storable food stuffs?
I respect that... but the chef in me hates you. Nothing personal.
If you have flour, fat, plenty of time, the right kind of weeds in the yard, and squirrels in the trees, you can whip up a decent pot pie. I've done it after the Oct 2008 market crash.
/johnny