We were, through our own carelessness, stuck in a Walmart parking lot in Livingston, Texas in the aftermath of Hurricane Ike--for two long days. We were lucky to have propane, drinking water, and all the necessities in our camper; we only lacked gas to get out of there.
One of the things I made was skillet cornbread from a mix. I used a heat diffuser ("flame tamer") under the skillet and managed quite a nice crust without burning it. The mix cost 42 cents. With it we had fried ham, canned stewed tomatoes, some fresh fruit, and imported dark chocolate. It seemed incongruous to eat in such a civilized way under the circumstances.