I shop at the dollar store, and at local Mom & Pop garden stops along the highways and byways for fresh fruits and veggies. 2 of my neighbors and I share papergoods we get at Sam's Club. I cupon clip, and try to save as best I can.
As for my gardening, I use some of my food clippings for the soil, and I use fat for winter to feed the birds (suet).
I have 1 neighbor who is a hunter, and he gives me some of his game that he gets and cooks (smoker or fryer).