Based on a rec posted earlier this week, I went Mercandito at 179 Ave B last night. We started with a cheese and mushroom fondue (actually the mexican equivilent) which was kinda of like a make your own quesadilla. Then we had the calamari tacos, which were really good, and the chicken tacos, which were ok. There was a bunch of apps that I didn't try (I was in the mood for a small meal) but sounded interesting.
Nice neighborhood taqueria, I'd go back.