In a bowl, combine flour, oregano, baking powder, sugar, salt, and yeast. Mix the dry ingredients well.
Add water and mix.
Wipe an 8-inch skillet with a kitchen towel dipped in oil and put it on medium-low heat. Pour the pizza mixture into the skillet, top with sauce, half the cheese, pepperoni, olives, and the rest of the cheese.
Cover the skillet tightly with aluminum foil and cook for 5 minutes. Then, reduce the heat to low and make a small opening in the foil to release vapor. Keep it on low for another 5 minutes.
Make the lower crust by following the same directions as the upper crust without all the toppings, I just added cheese.
For the lower crust I cooked it for 4 minutes covered and another 3-4 minutes on low with the vapor release opening.
While the pizza is cooking, shape your patties using a similar-sized skillet. Grill them or cook them in the oven or on the stovetop.
For the assembly, put the bottom crust first, then the burger, add whatever burger topping you want, then top with the upper pizza crust.
Cut into halves or quarters for easy handling.