Preheat the oven to 450 degrees F (232 degrees C).
Add the self-rising flour and Greek yogurt to a bowl and mix it until it becomes crumbly in texture.
Use your hands to knead the dough for a few minutes until it starts to come together into a ball.
Sprinkle a little flour on a surface and roll out the dough. I like to roll it out thin for these mini pizzas, but you can roll it out to your desired thickness.
Use a cookie cutter or circular object to cut out small circles from the dough. Place the dough circles on a parchment paper-lined pan.
Spread a small amount of pizza sauce on each dough circle.
Sprinkle a small amount of cheese on top of the sauce on each dough circle. Top with optional toppings.
Bake for 8-10 minutes, or until the cheese melts and the crust slightly browns. The mini pizzas will puff up while baking and deflate once cooled.
