The one star rating is solely cause of the extremely poor quality of food.
Being a vegetarian, every time I check out a new place, I scan the menu carefully for veg options. To my disappointment, the options were limited. Really limited! I'm well adjusted with a few vegetarian options at several places. However, at On The Border, it was difficult. The Chile sauce for the only two vegetarian Enchiladas was not veg! Thus, I had to go for Ranchera - the only sauce for vegetarians. That being said, I ordered Onion Cheese & Spinach Mushroom Enchiladas. They were stuffy, hard and had a weird taste.
Nonetheless, the real letdown was chips and salsa! I wouldn't claim to know authentic Mexican cuisine. Yet, I'll say this - a Mexican restaurant that cannot put amazing chips and salsa on the table is no good! The chips were thick, salty and partially uncooked.
Apart from this, the service was decent. Just mind your head on the booths with super low lamps. They hover on your head, literally!