I got this recipe from my very old Betty Crocker recipe file box. It was in the 'Outdoor Entertaining' section. I'm posting it exactly as written,per a request, but I don't know exactly what they mean by '1 envelope of meat marinade' which is critical to this recipe. There are numerous marinade recipes on this site,so if it were me, I'd look for one that would compliment / enhance the Mexican flavor, unless you can easily find the meat marinade envelope called for. Cook time does not include marinating time for the steak.