"I'm sure other regions can chime in with their indigenous cooking, but in the South we have very specific and unique dishes that aren't found anywhere else. Barbeque for one - it varies a good deal regionally (and there have been some regional conflicts, almost to the point of blows, over which is "best") but is quite good whether pork or beef (or chicken or goat, which are rarer). The classic Southern home cooking, with a centerpiece of fried chicken or pot roast surrounded by hearty vegetables and perfect light raised breads (or cornbread for the initiated), supposedly had its origins in Scotland but it sure isn't served there now. And of course there is Cajun cooking, which is 100 percent unique although nominally French, and possibly some of the best food you will ever eat."
Agreed, I love Cajan food, hoping to visit Louisiana with my wife & kids next year and sample the real stuff.
If you ever get to Texas, drop a line! We would be proud to take you for a big Texas steak, some fried catfish, some barbecue, and some REAL Tex-Mex food!
And try the Creole cuisine, which is more frankly continental French, but with a Louisiana flavor. We have a LA emigre here in Atlanta who runs a lovely Creole restaurant.