Place Greek yogurt in a mixing bowl. Add whole wheat flour, baking powder and salt. Mix everything slowly until a soft dough forms. The dough should feel slightly sticky but easy to handle.

Sprinkle a little flour on your counter. Place the dough on it and knead for about three minutes. This step helps the dough become smooth and easy to roll.

Use a rolling pin to flatten the dough. Roll it into a large rectangle about half an inch thick. Try to keep the shape even so the hot pockets cook evenly.

Use a knife or pizza cutter to cut the dough into rectangles. Each rectangle will become one hot pocket. You should get about four to six pieces.

Spread a small spoon of pizza sauce in the center of each rectangle. Add mozzarella cheese, chopped chicken, bell peppers, onions, and pepperoni if using.

Fold the dough over the filling to make a pocket shape. Press the edges with a fork to seal them tightly. This keeps the cheese from leaking while baking.

Place the hot pockets on a baking tray lined with parchment paper. Brush the tops lightly with olive oil. Sprinkle parmesan cheese on top for extra flavor.

Preheat the oven to 190°C (375°F). Bake the hot pockets for about 18 minutes. The crust should turn golden brown and crispy.

Remove the hot pockets from the oven and let them cool for five minutes. This helps the cheese settle inside. Serve warm and enjoy every bite.