While I'm busy doling out thanks, I'd also like to extend some to annieb. On a recent weekend, I hit both Los Mogotes de Michoacan and Taqueria los Gallos and got her recommended items, the enchilada de flor de calabaza and the gordita de papas con nopalitos respectively. I apologize for poor Spanish.
The enchilada was good, though I didn't think exceptional (didn't like it as well as at Maxwell Street, my only previous experience with said dish). The potato and cactus gordita was a real winner though--excellent all around and very flavorful. I tried a taco al pastor at each location and both were fine, neither outstanding--I think I'd give slight preference to Los Mogotes but nothing to get to excited about.