Driving down 25th in the Mission the other day, I was transfixed by the brightly-colored mural of giant smiling dancing vegetables painted on the wall and the promise of "99c tacos al vapor" I stopped in to see if they had tripitas, but sadly, they did not have any. They did, however, have a fine version of carnitas - big, succulent shreds of intensely flavored pork served in a lightly fried tortilla with coarsely chopped onions and a wedge of lime. The big basket of free tortilla chips was surprisingly good - delicately thin and ungreasy and came with a fresh salsa that kicked you when you were least expecting it. While I ate there was a continual industrial-level thumping emanating from the kitchen. I took a quick peek and saw that the noise was coming from a device like a metal press in which they were smashing onions and tomatoes with apparent glee.
Anyway, I couldn't find a listing for this place on the net - I'm not even sure I have the correct name for the place. It's on Treat & 25th. Does anyone know the place I'm talking about and where Number 1 is?