In a mixing bowl, add the wet ingredients, including 1/2 cup Greek yogurt, 2 tablespoons maple syrup, 1 tablespoon light olive oil, 1/4 cup milk, 1 teaspoon vanilla extract, and 2 eggs and whisk until smooth.
Add the dry ingredients, including 1/4 cup protein powder, 3/4 cup oat flour, 2 teaspoons baking powder, 1/4 teaspoon salt, and 1/4 teaspoon cinnamon and whisk just until combined. Allow the batter to rest for 10 minutes.
Preheat a non-stick skillet over medium heat and lightly grease with oil. Pour 1/4 cup of batter onto the skillet for each pancake. Cook until bubbles form on the surface, then flip and cook for another 1-2 minutes until golden brown.