Fiesta Chicken Pasta Salad

1 package Hidden Valley Fiesta Ranch dip mix
½ cup oil
½ cup vinegar

2-3 cooked, shredded chicken breast halves
3/4 box garden rotini
1 can black beans, drained & rinsed
2 or 3 tomatoes, chopped
Frozen corn
½ cup salsa

Mix dressing mix, oil, and vinegar in small bowl and set aside. Combine chicken, cooked pasta, beans, olives, and tomatoes in large bowl. Add dressing, frozen corn and salsa about 20 minutes before serving. Toss just before serving.