Native American Plants and Food
One of the recommendations you often hear is to plant "native" plants, that is plants which have been growing in your geographic area for a long time, with the hope that having adapted to the local rainfall and climate patterns these plant would grow more easily and still provide plenty of food.
A off shoot of that, is rediscovering how past native people served those foods, and what dishes were popular then.
Some of those diet choices, like using rabbit and chicken rather than beef are also probably better for you too.
I noticed this link as well on that site:
There is so much more than the typical "American" menu out there to explore. And check out this Appalachian pantry, wow!