In a bowl, whisk egg whites, oat flour, protein powder, baking powder, cinnamon, Greek yogurt, and vanilla until smooth.
Heat a non-stick pan over medium-low heat and lightly grease with cooking spray.
Pour the batter into the pan, spreading it evenly.
Cook for 2-3 minutes until bubbles form on the surface, then flip and cook another 1-2 minutes.
Serve with Greek yogurt, fresh berries, sugar-free syrup, or a drizzle of almond butter.
