Well, it looks like this Name that Dish entry stumped my readers, because only ONE person was able to correctly guess the restaurant! (and he is a past winner- so he did not qualify.)
The correct answer is:
The dish is the Sourdough Chicken Fried Steak with chorizo gravy and mashed potatoes from Lottinvilles Restaurant in Edmond.
Thanks for all the great guesses and I’ll have another Name That Dish contest coming soon!