In a small mug add the flour, baking powder, baking soda and salt. Mix the dry ingredients together. Then add in the milk and oil and mix again until well combined.
Add pizza sauce and spread it around the surface of the batter. Add in the cheese, pepper, olives and sprinkle with oregano.
Microwave for 1 minute or until it rises up and the toppings are bubbling. Take the pizza out of the microwave oven and enjoy your hot pizza.