For restauranty, we go to Don Jose in Tustin and Laguna Hills... also Flamingoe's in Laguna Hills.
For "really bad" Mexican food, Alberto's off of Edinger and Grand in Santa Ana.
For okay Mexican food, Jalapenos off of Alton (they closed the one in Woodbury), but I don't really like their chips.
If you want to spend a lot of money, Javier's.
I like El Cholo, but the wife doesn't... and she like's Taco Rosa, but I think they are overpriced and underportioned.
We did not like On The Border at all and have never been back.