Despite NumNums’ disparaging remarks about my beloved AQ Chicken House, I will heartily second the nomination of the Catfish Hole. May be the best hushpuppies I have ever eaten, and the shrimp is just as good as the catfish.
Another place we always used to stop on the way through the area was the Ozark Mountain Smokehouse on US 71 (Now a scenic byway) in the Boston Mountains near Mountainburg. This is the original location, started in the 1940s. They also have restaurants in Fayetteville and Russellvile that I know of, and maybe others. Excellent smoked hams, turkey, chicken, bacon etc. A smoked turkey sandwich along with a dill pickle and homemade potato chips in a rustic setting on the side of a mountain – it doesn’t get any better. Check out their website.