Grill the nopales at high temperature for about 4 minutes each side or until they are cooked. They will change color from a bright green to a brownish green.
Carefully cut them in bite size pieces and mix them with the rest of the ingredients.
Refrigerate for a couple of hours before using.
Serve over cecina, carne asada or any other kind of taco. Remember that real tacos are made with corn tortillas.
Recipe by What's Cooking Mexico at http://whatscookingmexico.com/2010/05/25/cecina-tacos-with-nopales-salsa/