pg actually mentioned that "Ramen profitable" is not to be mentioned literally. I don't have the link of the top of my head, but he even included a beans & rice recipe.

I eat a lot of oat groats and korean barley. You can order oat groats in bulk, 50 pound bags, with a shipping cost of around $5. Woohoo.

Buckwheat and quinoa are my favorite. They both have a very good balance of amino-acids and proteins.