Ok, question for those in South Knox/ Northern Blount County in the '70's and '80's:
There was a non-chain burger place our by the airport on Old Maryville Pike, except that out there I think it was Old Knoxville Hwy?? Anyway, not on All-Kill-Ya Hwy, or at least I don't believe so.
It had amazing burgers that actually had flavor, and it began with what I call a Scrabble letter: Q, X, Y, or Z.
Xeno's? Completely making things up here in terms of names, but it was amazing. Went out of business.
Edit to add: maybe it WAS on Alcoa/ Airport Hwy. I don't think so, because it was sort of sleepy and slow, but Murrville Pike doesn't really feel right, either.