There's kinda one sticky point - lard.
I can't really verify that some of the things below don't really contain lard, and to be honest, I don't really want to know
See, my wife's veggie, but more of the don't ask don't tell variety, and I'd rather not be in the ethical quandary of witholding pork based information
that being said, a number of her favorite places have been mentioned: AnnieB's find of the potato gordita at el gallo
My wife really, really enjoyed the enchiladas potosinos at kappy's (thanks A&A), since then I've been told by that they ealso make a tlacayo de habas (fava beans)
Oaxaquena, but since she doesn't include seafood in her repertoire for their chile relleno, which are ancho chiles
huaraches de rajas and sope de hongos at quesadillas dona lolis
and some of the picaditas from the vans near marianao