My personal favorite is Casa Maria, but there are a few others, including a Taco Bell. Not too bad for a town that was a culinary desert when I was growing up and really up until about the mid-1990's. Casa Maria has great margaritas, the prices are reasonable and the portions are generous. It is owned and operated by a locally residing Mexican family.
2101 Walnut St, Cary, NC 27518
Casa Maria Restaurant
2103 Veterans Blvd Ste 9, Dublin, GA 31021