Preheat oven to 200°C.
In a bowl add chicken cubes, oil, salt and black pepper and marinate for 30 minutes.
Spread pizza topping on pizza base. Place capsicum, onion, tomato, olives and marinated chicken. Sprinkle mozzarella cheese on top to cover the vegetables and chicken.
Bake for 15 minutes or until cheese melts and pizza bases turns light brown.
Cut pizza into 4 pieces and serve.