I went to Cinco Amigos three times while staying in Lenoir City for a week. Â You might not expect much, seeing as how it shares space with a Day's Inn, but appearances are deceiving. Â Just go around back for the restaurant entrance.
As you enter, there is a bar to the left, dining to the right. Â There's nothing very special about the decor. Â There are several television screens for your enjoyment. Â It's clean and modern. Â The service is not particularly friendly, but is efficient.
But the food is great.  The salsa and chips are terrific, and everything I ate had a fresh taste and appearance, and was seasoned just right.  Being a vegetarian I ate no meat but there were several veggie-only options.  My dining companion had a meat dish and enjoyed.  The price is reasonable: dinner and a large beer  cost $13, tax and tip included.
Go for the food. Â It's good.