If push comes to shove, one would "process" the beef by themselves. eat the tasty bits and remove them from the less desirable items, like intestines.

I did a search on "wild plant foods Florida" - lots of references. Here's a starter list:

Van Atta, M., Living of the Land, B & B Reproductions, Inc, 1973.
Deuerling, R.J., Lantz, P.S., Florida's Incredible Wild Edibles, Florida Native Plant Society, 1993.
Rawlings, M. K. , Cross Creek Cookery,
Bowers, P. G., I Eat Weeds, Buttercup Press, 1996.
Bell, R. and Taylor, B.J. Florida Wildflowers and Roadside Plants, Laurel Hill Press, 1982
Colvin et. al. , Weeds of Southern Turfgrasses, University of Georgia Cooperative Extension Serv.
Nelson Gil, The Trees of Florida, Pineapple Press Inc. Sarasota Fl., 1994, photo #46, pg. 172.

Depending upon wild native foods is not easy.Even well established hunter/gatherer groups throughout the world experienced tough times and hardships, but there is food out there for the gathering, and it can make a difference.

Even dandelions provide edible bits...