Chuck House
I have heard Oklahoman tales of chicken-fried steak, or just chicken fry in local parlance, that spans an entire plate and then some. This was not the case at Chuck House, though you still got a lot of food for your $5.69: witness the pounded beef cutlet, mashed potatoes, and Texas toast buried in a velvety blanket of cream gravy white and speckled like vanilla ice cream. A meat sundae.
We were nearly the only ones not partaking in the salad bar; that was the prime source of towering feats of plate-filling whimsy, heavy on the shredded cheddar and ranch dressing. I was more taken with the ordering system that has diners call to the front counter to place your order (some get very specific: "extra mayonnaise," "fries well-done, not salted") within eyeshot of the staffer speaking and noting your request.
When it's ready, your phone rings and you retrieve it on a plastic tray from the front counter. Driving-thru is also a respectable way to pick up an order, though that probably precludes the popular salad bar.
Chuck House * 4430 NW 10th St., Oklahoma City, OK