Preheat the oven to 200C
Heat the oil on a medium heat in a frying pan or wok
Add the chicken and fry for 8 to 10 minutes
Tip in the ginger and garlic and mix for a couple of minutes
Stir in the pasta sauce or tomatoes and soy sauce
Mix in the chili powder
Spoon the mixture onto the pizza base
Sprinkle with the onion and cheese
Bake for 10 minutes until the cheese has melted
Garnish with the coriander