Roti pizza kotak makan siang (cepat)

Bahan-bahan (12 porsi)

• 2 cups plain flour (all-purpose flour)
• 1 1/2 tsp baking powder
• 1/2 tsp baking soda / bi-carb soda (, sifted (Note 1))
• 1/2 tsp cooking/kosher salt
• 1 large egg ((60g / 2 oz))
• 1 cup milk ((full or low fat))
• 1/4 cup sour cream (, or plain yogurt)
• 3 tbsp olive oil
• 1 cup shredded cheese ( (colby, cheddar, Monterey Jack, Devondale "3 cheese blend") (Note 2))
• 1 1/2 cups shredded cheese, ( same as above (Note 2))
• 1/2 cup pizza sauce (, store bought or homemade (any of them))
• 1/4 red onion (, finely sliced)
• 1/2 g reen capsicum / bell pepper (, finely sliced)
• 1/4 cup sliced kalamata olives
• 50 g / 2 oz pepperoni slices ((about 1/2 cup))