Process rolled oats in a blender until they reach a flour-like consistency.
Combine oat flour, protein powder, baking powder, and cinnamon in a mixing bowl.
Add egg whites, cottage cheese, and almond milk to the dry ingredients and blend until a smooth batter forms.
Heat a non-stick skillet over medium heat and lightly coat with cooking spray.
Pour approximately 1/4 cup of batter per pancake onto the skillet.
Cook until bubbles form on the surface, approximately 2 to 3 minutes, then flip and cook for an additional 1 to 2 minutes until golden brown.
Serve immediately while warm.