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, eggs, and milk until well combined.

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

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

Turn the dough onto a floured surface and gently knead a few times until it comes together.

Pat the dough into a circle about 1 inch thick and cut into wedges or use a biscuit cutter.

Place the scones on the prepared baking sheet and bake for 20 minutes or until golden brown.

Remove from the oven and let cool slightly before serving.