Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
In a medium mixing bowl, combine the flour, Greek yogurt, baking powder, and sea salt, stirring until a shaggy dough forms.
Turn the dough onto a lightly floured surface and knead for 1-2 minutes until smooth, then roll it out into a 10-inch circle.
Cut the string cheese sticks in half lengthwise and place them around the perimeter of the dough, about half an inch from the edge.
Fold the outer edge of the dough over the cheese sticks and press firmly to seal the stuffed crust.
In a small bowl, whisk together the tomato puree, dried oregano, and garlic powder, then spread it evenly over the center of the pizza.
In a small skillet over medium heat, cook the ground turkey until browned and crumbled, then drain any excess moisture.
Chop the Canadian bacon into small bite-sized pieces.
Layer the cooked ground turkey, Canadian bacon, and turkey pepperoni over the sauce, then sprinkle with the shredded mozzarella.
Bake for 12-15 minutes until the crust is golden brown and the cheese is bubbly and melted.