Twenty dollars in lotto tickets and home for the best!
Joking of course. I agree with something along the lines of what ThePeeDeeWildcat suggested, but I would try to include some more protein in there instead of the crackers and all that soup, perhaps something cheap like hotdogs or a bulk package of chicken.
Another option might be some cheap cans of chicken broth, some cabbage, some carrots, and some chicken, and making a giant stock of soup. That with some peanut butter and bananas to make some snacks with.