Do not underestimate foraging. In our area there's thimbleberry, sorrel, Oregon grape, salmonberry, wild onions, morels, chanterelles, fiddleheads, chickory, lambs-quarters, miner's lettuce, dandelion, wild mustard and asparagus, along with wild plums and abandoned apple, pear, and walnut trees -- along with billions of blackberries. We catch the occasional trout to go with all this bounty as well, and are familiar with original Brunswick stew. Nutrias are next, if they keep raiding the potato bed.
Books or some good websites can help you establish what's good to forage in your area. Best is an experienced guide. Be careful, especially around mushrooms.