I heard a story on NPR about a local farmer using a hoop house which is also called a high tunnel green house. I thought of you when it came on 🙂 One suggestion would be foraging for mushrooms (or even cultivating them) could be a source of protein. Ok two suggestions, you could also barter with other local growers for things you don't have. I know a guy with an orchard that trades all his windfall apples to a local farmer and once a year he gets a pig!
Funny, I was thinking about trading/barter.
Good friend is a scalloper. I traded a tray of stuffed peppers, last year. he gave me a 5 gallon bucket of scallops. I thinkk that's a great idea: trading/bartering!