You can always find great deals at their happy hour. My favorite is Wednesdays in which you can get a PITCHER of margarita for $10!
On top of that, all their apps are 1/2 off. I usually get the "Three Amigos" which consists of 3 tacos, discounted for $4. It usually fills me up pretty well, and with the pitcher shared with a friend, the cheque comes out to ~$10!
Not the most amazing food, but I'm a huge fan of their prices!!