Really good Mexican/Salvadorian food. Simple decor, with funny Spanish TV playing. HUGE portions, cheap prices, friendly staff. Pupusas are off the HOOK! I can also attest to the enchiladas, and burritos. Also, no fee for BYO wine. :)
Docked it one star for a less-than-great vegetarian selection, and they use some kind of Chinese veggie mix (I had water chestnuts and baby corn in my enchilada -- not exactly traditional, though still tasty).