Thanks all for the leads on some great places I hadn't tried before. Hong Xuong bakery on Arglye (Vietnamese Chinese lauded by RST) is great. The avacado shake is the best I've had anywhere. One of these with a "shrimp toast" (really a battered, deep fried half-baguette with two fat shrimps) is a nice meal. The vast array of sticky rice desserts is great too. The Thai deli/meat counter at the back of Thai Grocery is another terrific asset.
Also wanted to follow up on a newish place on Lawrence that RST partially and righfully panned a while back, Cardona's. They specialize in DF style foods, including huaraches. As Richard noted, the tortillas are hand-made, yet not-so-good. I tried the huaraches, and liked them ok. A thin smear of black beans is spread between the layers of the huarache itself, adding character, although the dish is limited by the same dry masa used for the tortillas. I wouldn't mention the place except for the pambasos, which on this one occasion were very good. The elusive pambaso, as opposed to the torta ahogada, e.g., is not much seen hereabouts. The roll was quite different from the bolillo normally used on tortas, This was round, squat and soft. Not sure it was a proper pambaso per RST's description. Chorizo con papas filling and the sauce were quite good. So, I'd pass on the masa-based stuff and give the sandwich a shot. Then walk west and cross the street for a beer at the Korean bar with the new sign featuring an hour glass. Very atmospheric, dark and tropical inside with intimate booths made of rough-hewn logs. interesting little Korean bar-food menu focusing on simple dishes from the kitchen in back.