In a bowl, mix the flour, baking powder, salt, and sugar.
In another bowl, whisk together the Greek yogurt, egg, and milk until smooth.
Add the wet ingredients to the dry ingredients and stir until just combined.
Heat a non-stick skillet over medium heat and lightly grease it with cooking spray or oil.
Pour 1/4 cup of the batter onto the skillet for each pancake.
Cook until bubbles form on the surface, about 2-3 minutes.
Flip the pancakes and cook for another 2-3 minutes until golden brown.
Repeat with the remaining batter, greasing the skillet as needed.
Serve warm with your favorite toppings.
Enjoy your delicious Greek yogurt pancakes!