It is interesting to see the American context where food is so cheap. In my country eating out, even fast food, is the privilege. For me there's no cheaper option than cooking at home, by a wide margin. It does take some planing. But I would go broke in a week if I ate a whole work week straight of fast food. It would be over half of my monthly income. Just one week of lunch only. So for me there's no option, I have to cook at home or I would starve.