I used to live in the heights in the 90's and had a friend who works in old mexico rest., he told me that this place has a mini factory combined within the kitchen. As I recall he said they produce their own tortillas, tamales, taco shells and chips, from scratch. Supposedly they supply other food establishments citywide with these products. I dined there many times and found their meals tasty. Haven't been in the area for sometime and am curious about present fare.