Steak & Potato Stir Fry

1 pound boneless beef sirloin steak, cut into thin strips
1 Tablespoon oil
2 cups cubed potatoes
2 cups sliced carrots
½ cup water
2 cups each: sliced mushrooms and onions
¼ cup Kraft Balsamic Vinaigrette Dressing

Cook and stir the meat in oil in skillet on high heat 2 minutes or until browned. Remove beef; set aside. Add potatoes, carrots and water to skillet. Bring to boil; cover. Reduce heat to low and cook about 20 minutes or until vegetables are tender.

Stir in mushrooms, onions, dressing and meat; cook and stir on high heat 5 minutes until heated through.