To the OP - I understand what you are looking for. For the record, I much prefer TexMex to more authentic Mexican food. But, I've been spoiled by having lots of good (TexMex) restaurants here in Texas.
If you have a car, I saw someone mention Chuy's (note: NOT Chevy's, but Chuy's). I know it's a chain, and most of the big chains tend to not be quite as good, but I have eaten at a few different Chuy's restaurants and really like them. It tends to be heavier on the spices than lots of places, though. On the other hand, I've tried Chevy's twice and I'll try to avoid going back there again, but it will have the kind of food you're looking for.
If you have a car, I saw someone mention Chuy's (note: NOT Chevy's, but Chuy's). I know it's a chain, and most of the big chains tend to not be quite as good, but I have eaten at a few different Chuy's restaurants and really like them. It tends to be heavier on the spices than lots of places, though. On the other hand, I've tried Chevy's twice and I'll try to avoid going back there again, but it will have the kind of food you're looking for.