What meals do you make when you're on a really tight budget?

When I was younger we'd get like a corned beef stew made when we were really broke. It was cheap as trout to make and had lots of veggies and was tasty. Now that I live with Pheesh when we're really broke we'll make an aglio e olio pasta which is just spaghetti tossed in garlic, chilli, and oil. It's p. yummy and filling.

Growing up eating a lot of corned beef stew has meant that even though I'm a bit of a food snob and I do enjoy more premium produce, I'll never turn my nose up at corned beef. That stuff is awesome when you're in a financial pickle and you have mouths to feed.