Dropped by El Potro, which is a new taqueria in Somerville's Union Sq for lunch today. Looks like it **just** opened. It bills itself as a "Mexicanm Grill and Salvadorean Cuisine" and indeed the menu is fairly varied: in addition to tacos, enchiladas, burritos, and pupusas they advertise various soups, tortas, several seafood dishes, a couple of mixed plates with chicken or beef, fried yucca and chicharrones, etc. In fact the menu is fairly disorganized so it's hard to make out what's a quick lunch bite vs. a more substantial plate of food. The prices are varied too -- $1.50 for a single soft taco but up to $12.00 for one of the seafood plates. Most of the main "entrees" were $8-10. Burritos were $6 and tortas $4.50 IIRC.
Being lunchtime I just got a couple of beef tacos and a grilled plantain served with crema. DP got two pupuas - they advertise both revueltas and queso but we only ordered the queso variety.
Overall, the food was fine, simple, not too greasy -- somewhat more fresh tasting than Taqueria Mexicana, a couple of doors down. Still, being a new place, it's clear they have some kinks to iron out. Although the tacos were prepared from the steam table the beef was not exactly hot by the time it got to me. The grilled plantain was huge and quite good. The pupusas were very thin and the dough a bit gritty - probably a notch down from Tacos Lupita. I got a chance to spy on some other diners having enchiladas and tortas -- looked like the enchiladas were rather large and not quite what you get at most Mexican joints. The tortas looked tasty.
The guys behind the counter seemed a little confused and did not know quite how to put the orders together efficiently -- I chalk this up to inexperience. Hopefully they'll get the hang of it soon.
Overall the menu was pretty random and seemed to represent more of a Central/South American comedor than a Mexican taqueria -- one of the dishes was a Colombian plato tipico -- so I am not sure where the proprietors are from. It will be interesting to see how they end up doing and would love to hear other opinions...