Since the last time I went there Mr. Torta's has expanded and clarified its menu a great deal thanks to a bit of renovating at the counter. Now there are visual presentations and written descriptions of basically every ingredient and dish scenario, and I believe they've added a couple new dishes entirely (sopes might be new at least, if my memory is right).
The quality of the ingredients is standout in my opinion. I don't know how they make the food so cheap because they're clearly not cutting corners with the materials. The ingredients are better than what you'd find at Chipotle or Qdoba, in my opinion.