Just curious as to what fast food is, as I always thought it was just stuff that was junk food and fast...
I think Beck's Prime might be the exception. You can get a T-Bone steak in their drive-through. Of course, it'll cost you $25, or the price of a T-Bone at pretty much any good restaurant.
Counter service, disposable plates and utensils, and most meals for less than $7. I don't see that it matters whether there's a drive-thru window or what kind of food is served.