The La Unica in Huntersville was a go-to for my husband and me when we lived near the lake! Our first experience was lackluster, but their new, bigger location has a lot more to offer. I always get the guisado (which is, admittedly, a weird thing to continuously order), but it is a LOT of food, and it has a great kick to it! Their margaritas usually had a pretty good kick.
I would advise getting there early or sitting at the bar, because it can get pretty packed on the weekends!