I will probably have electricity so might bring an electric wok. Will probably go to the local wholesale food market, pick up small cheap apples and bananas, bag of rice (preferably brown, I am in Whole Foods country). If I can find large (number 10) cans of beans or chile, or tomatoes I can whip up something. Otherwise a trip to Walmart for large cans. Rice and beans, spaghetti and meat sauce, peanut butter and jelly, for variety. Thanks for ideas, I will also lobby for more money.
Good luck! Thought and preparation will lead to success. That and hunger... ;)
An old vet told me that the best meal he'd ever eaten in his life, was a single boiled potato while in a German POW camp, after days of nothing to eat.