Place vegetables in microwave safe bowl. Cover & microwave on high 5 minutes. Preheat skillet Med-High 2-3 min. Coat with cooking spray. Add chicken. Sprinkle with Steak Seasoning. Cover & cook 2-3 min. Turn, sprinkle again with seasoning. Cover & cook 2-3 min until chicken begins to brown. Drain vegetables & add to chicken. Cover & cook 5-10 min until begin to brown and stick. Remove lid, cook 3 min & stir once. Stir in Balsamic Vinegar and serve immediately.