We drive from Nashville to Bloomington a lot and this is a great, quick stop to eat when we're almost home, but know there isnt any food in the house :)
Cheap, simple Mexican food. The people that run the place are very sweet and give speedy service. Easy access from the highway. Even though there is another Mexican place close by, we always stop at Azteca. Consistently good!
Also a coffee shop next door if you need a quick pick me up :)