Heat the skillet on medium to low heat.Rub the steaks with olive oil and season with cracked black pepper. Slowly cook the filets until they have reached your desired specifications. We like to cook ours to be medium done, and that averages about 7 minutes on each side.
Remove the filets from the heat and slice thinly and lengthwise. Use a clean skillet over medium heat and warm up the corn tortillas. Top the tortillas with steak, guacamole, sour cream, and shredded cheese.