El Potrillo may be located way off in Tellico, near the old folks, but this is easily the best mexican restaurant I've ever had the pleasure to dine. My girlfriend and I will drive all the way from Oak Ridge or UTK just to eat there. Occasionally, we'll plan a day in Tellico for the sole purpose of dining at El Potrillo. The service is usually efficient and friendly, and the food is simply the best around. I'd recommend one of the burrito+taco combination lunches/dinners, which is easily enough to fill even the hungriest of patrons for less than $8. Be careful, though, as the salsa is probably the spiciest I've ever tasted at any restaurant.
Pros: Best Mexican Food Ever Tasted
Cons: out in Tellico