Cook all your meals in advance. Pasta, potato gem casserole, and a Thai red curry can give you roughly two weeks of lunches and dinners if you alternate well. You can add breakfast bowls of eggs, cubed ham, and potatoes and they’ll keep for a week, minimum (I don’t know how long exactly because a dozen eggs gets me six meals).
I usually pay around $50 every two weeks for food, plus a bit more if I’m running low on coffee or milk.
I gained weight when I could make money. Now I keep intermittent fasting for 10-12 hours just to prolonge my food. It not just keeps me lose weight but I .sure of I start making money again , I won't be able to get fat because this discipline. Also it reduces your hunger significantly, I now can stay fasting even in winters.