Slice bread in half lengthwise. Place cut-side up on baking sheet. Bake in preheated 425 degree F oven for 3 to 4 minutes or until lightly toasted.
Heat oil in large skillet over medium-high heat. Add chicken, onion, bell pepper and salt; cook, stirring constantly, for 4 to 5 minutes or until chicken is no longer pink. Spread pizza sauce over cut surface of bread; top with chicken mixture. Sprinkle with basil, olives and cheese.
Bake in 425 degree F oven for 5 to 8 minutes or until heated through and cheese is melted.