The reason I was in the vicinity of Great Wall last night (see topic at http://www.chowhound.com/topics/453153) was because I was stopping at El Taco Tote to buy dinner to take home. Located at 35th Ave. and Camelback, this very authentic and very busy place has a short menu offering delicious chopped grilled meats including pork adobado, carne asada, and chicken. We like the adovado so much that we haven't tried all the others, although we have had the chicken which is very good as well. Both corn and flour tortillas are made in house, and the corn ones are especially good, fragrant and on the thick side. The salsa bar offers about half a dozen salsas, as well as cucumber slices, cilantro, onions, grilled jalapenos and onions, and key limes. You can get individual servings or family meals to share. Most orders come with rice, soupy pinto beans, and fresh guacamole. It is upscale enough that you can pay with your debit card, and the order takers generally speak English, although many others in the restaurant do not.
El Taco Tote is actually a franchise -- here's a link to their web site: http://www.tacotote.com/a1a.htm According to the web site, there is another local location at 1050 S. Country Club in Mesa, and there are a couple in Tucson.