Once, years ago, we had a power outage that lased for over a week. It was below freezing and we had over 8-inches of snow on the frozen ground,
I had frozen ground beef in our freezer, so I fired up my grill on our patio, and cooked all of the beef as hamburger patties. I then placed them in sealable plastic bags and stored them under a layer of the snow. For several days, we just warmed up a batch on the grill for our dinner.
What my point is, look around your house, yur neighborhood, and improvise with what you see.