Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
In a medium mixing bowl, combine the all-purpose flour, Greek yogurt, baking powder, and sea salt.
Stir until a dough forms, then turn it out onto a lightly floured surface and knead for 1-2 minutes until smooth.
Roll the dough out into a thin circle, approximately 8-9 inches in diameter, and place it on the prepared baking sheet.
In a small bowl, whisk together the tomato sauce, dried oregano, and garlic powder.
Spread the seasoned tomato sauce evenly over the dough, leaving a small border for the crust.
Sprinkle the shredded mozzarella cheese over the sauce and arrange the turkey pepperoni slices on top.
Bake for 12-15 minutes, or until the crust is golden brown and the cheese is bubbly and slightly browned.
Remove from the oven, garnish with fresh basil, and slice into wedges before serving.