I don't remember any huevos, but I wasn't responsible for making it.
I cribbed a recipe for it... 3-4 pounds of beef roast, a couple chipotle peppers and a few tablespoons of adobo sauce, one large julienne'd onion, green, and red pepper. Slow roast for 8-10 hours, shred, and serve. It makes good chilli if you dice the peppers and onions, and substitute ground beef.