Try growing and using the "Miracle Grains" Quinona and Amaranth. They grow in any type of soil or climate and don't have to be threshed or milled. A big pot of cooked oatmeal with left over fruit and/or vegetables will also be eaten with relish. How about raising some meal worms in some dirt and coffee grounds? How about, if it's tropical, using/planting sweet potatoes. Mush up some turnips and sweeten 'em up a bit and watch 'em go at it.
There can be no divided allegiance here. Any man who says he is an American, but something else also, isn't an American at all. We have room for but one flag, the American flag... We have room for but one language here, and that is the English language... and we have room for but one sole loyalty and that is a loyalty to the American people."Theodore Roosevelt-1907.