Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.

In a mixing bowl, whisk together the whole wheat flour, baking powder, salt, and garlic powder.

In another bowl, mix the Greek yogurt, egg, and olive oil until well combined.

Add the wet ingredients to the dry ingredients and stir until just combined.

Fold in the shredded cheese, green onions, and bacon if using.

Turn the dough out onto a floured surface and pat it into a circle about 1 inch thick.

Cut the dough into wedges and place them on the prepared baking sheet.

Bake for 15-20 minutes or until golden brown.

Allow to cool slightly before serving.