My food budget is pretty minimal, I eat a lot of beans and brown rice and whole grain pasta with some veg thrown in there. Eggs, cheese, apples. Oatmeal. I rarely dine out, don't drink soda and only occasionally indulge in dessert. I'm not sure it's the most well rounded diet, but it's simple, I don't think I regularly spend more than $80 a month on food, and I'm at a healthy weight.
However, while I'm unemployed, things aren't dire for me financially, and I haven't experienced true desperation. But you can get a lot of mileage out of beans and rice, and they are cheap. Just boring. Kind of like me.

