Oaxacan Style Carne Asada (Mexican-Style Thin Sliced Grilled Steak) Serves 8. 2 bunches scallions, trimmed 8 jalapeno, serrano or poblano chiles Coarse kosher or sea salt Fresh ground pepper 2 pound boneless sirloin steak, sliced into broad sheets 1/4-inch thick* 16 corn or flour tortillas 4 limes, cut into wedges Oaxacan Guacamole Fresh salsa * Ask your butcher to cut the sirloin for you on his meat slicer. You may alternatively use skirt steak or flank steak in this recipe. Roast the scallions and chiles on the grill – either on the cooking grate, or directly on the charcoals (if using wood or charcoal). Remove from heat. Cover scallions with foil and set aside; scrape the skin off the chiles with a sharp knife (placing the chiles in a covered dish to steam for a few minutes immediately upon removing them from the grill, can make peeling them easier, but the steamed chiles will be softer). Cut the chiles in half, scrape out and discard the seeds, cover the chile halves w...