We made this tonight, with a few mods. I eyeballed the spice rub, used no onion powder or garlic powder, and used garlic salt. We added a thickly sliced Walla Walla Onion to the vegetables and it was very very good. Instead of serving this as tacos, we served chicken, vegetables, salad, and toasted some tortillas as a side. Used the chipotle sour cream as a garnish on the veggies and chicken. The cilantro slaw was good, too. Definitely a keeper!