So yeah, without some major digging I don't know who credit this to, but here it is:
A cheap meal I make for the two of us is a polenta and blackbean casserole!
1 can of black beans(dried are cheaper..I use 1/2 can for two people)
cornmeal(follow package to make polenta)
garlic cloves(as many as you'd like)
1 stock celery
1/2 can corn(for two of us)
salsa(this is where it gets expensive...I buy the cheapo biggest jug of salsa around 7 bucks here and it lasts like 5 differrent meals where I use salsa!)
Make the polenta(season with chili, oregano, anything you have on hand)
Put the polenta into a casserole dish, bake to harden(15 min)
Dice garlic, carrot, celery onion, mix corn and beans all together. Pour on top of polenta then pour salsa on top and bake!!
I haven't tried this yet, and to be honest I probably would do things drastically different when I make my own (probably white hominy instead of corn and salsa verde instead of tomato, etc). Think the idea of it sounds yummy!