The guy would be amazed at what family can be well fed on for a week on food stamps if properly done.
Go shop at an actual grocery store, and see what is there, on sale. Go to a Dollar Tree and a Dollar General and a Family Dollar, compare prices, and get what's cheapest. Go to Wal-Mart. Maybe clip a coupon or two. Then take the stuff you buy and figure out how to actually cook it so that it has nutritional value and tastes decent and then pass that along to the people, not just on food stamps, but on a budget.
Accomplish something real for a change.