Stove Top: Toss steak slices with your favorite seasoning in a medium bowl. Set aside. Heat a tablespoon of oil in large skillet on medium-high heat. Add bell pepper and onions; cook and stir 5 minutes. Remove vegetable mixture from skillet. Stir beef mixture into skillet; cook and stir 5 minutes or until beef is no longer pink. Return vegetable mixture to skillet; cook and stir 1 to 2 minutes or until heated through. Spoon onto warmed tortillas. Serve with assorted toppings, if desired.
