You can also sign up for USDA commodities at Salvation Army. They are packages of food that come from the federal government. You don’t get a choice in what you get but it is always something good and usable.
One time we got a leg of lamb, 2 BIG boxes of powdered milk, and 3 jars of *real* peanut butter (no sugar added). It wasn’t everything we needed but boy was the lamb a treat!