Heat oven to 375°F. Spray 12-inch round pizza pan with nonstick cooking spray. Cook chicken as directed on package. Finely shred or chop cooked chicken.
Arrange tortilla chips evenly on sprayed pan, edges of chips overlapping slightly. Top evenly with chicken, cheese and olives.
Bake at 375°F. for 8 to 10 minutes or until cheese is melted.
Meanwhile, in small bowl, combine all dip ingredients; blend well. Serve with nachos.