Preheat your waffle maker. In a medium sized mixing bowl, combine flour, baking powder, salt. Stir together.
In a separate mixing bowl, whisk together egg, greek yogurt, milk, maple extract, and butter spray.
Combine wet and dry ingredients, stirring until mixture is completely uniform. Stir in cheese, chopped bacon (with grease dried off), and scallion.
Spray waffle iron and cook waffles (roughly 3 tbsp/waffle) until lightly golden on either side. Serve with spicy maple syrup (maple with a dash of hot sauce and red pepper flakes) for a sweet and salty treat!