COOK pasta as directed on package.
MEANWHILE, sprinkle steak with dressing mix; toss to coat. Heat 1 Tbsp. of the oil in large nonstick skillet. Add steak; cook and stir 3 min. or until cooked through. Remove from heat. Set aside until ready to use.
DRAIN pasta; place in large bowl. Add steak and all remaining ingredients; mix lightly.
