Classic Beef Fajitas

Serves: 8 

Cooking Time: 20 min.


  • ¼ cup McCormick fajita seasoning or any fajita seasoning, divided
  • ½ teaspoon oregano, divided
  • ¼ cup vegetable oil, divided
  • ¼ cup red wine vinegar, divided
  • 1 ½ pound sirloin, flat-iron or flank steak
  • 1 medium onion, or more, cut into thin strips
  • 1 medium green bell pepper, or more, cut into thin strips
  • 8 flour tortillas, large
  • Optional toppings: guacamole, salsa, cheese, sour cream


  1. Sprinkle meat with oil, vinegar and seasonings on both sides. Place steak on frying pan and put on high rack in oven. Roast at 450ºF for 5 minutes on each side, or to desired doneness.
  2. Remove steak and let rest. Add onions and bell pepper, oil, vinegar and seasoning. On high rack, at 450ºF, roast for 5 minutes; toss, turn, and roast 5 more minutes.