Preheat oven to 240°C.
In a saucepan heat butter, add boiled, shredded chicken and salt and fry for 3 minutes.
Add green chillies, black pepper and paprika, mix well and continue to fry.
Add all vegetables, fry on high heat for 3 minutes.
Remove from heat.
Grease a round baking tray lightly.
Put the pizza base on it, spread the chicken mixture on it, sprinkle the grated cheese on it generously.
Sprinkle the oregano on cheese.
Bake for 10 to 15 minutes till pizza becomes crispy.
Serve hot.
Pleasebe judicious and courteous in selecting your words.