Preheat the oven to 375°F (190°C).

Spray two standard 12-cup muffin tins with olive oil spray.

In a medium bowl, whisk together the flour, baking powder, and salt.

Add the Greek yogurt and mix with a fork or spatula until a crumbly dough forms.

Lightly flour a work surface and transfer the dough.

Knead the dough about 15 times until it becomes tacky but not sticky.

Divide the dough into 16 equal portions, about 25 grams each.

Roll each portion into a ball.

Press each dough ball into the bottom and slightly up the sides of the muffin cups.

Bake for 15 minutes.

Remove from the oven and carefully press the centers down to create small wells.

Add about 2 teaspoons pizza sauce to each cup.

Top with 1 tablespoon mozzarella cheese and a sprinkle of turkey pepperoni.

Return to the oven and bake for 3 minutes, or until the cheese melts.

Let the Pepperoni Pizza Bites cool for 2 minutes.

Carefully loosen the edges with a small knife or spatula and remove from the pan.

Repeat with remaining dough and toppings if needed.

Serve warm with optional crushed red pepper flakes.