Blend the dry base: Add oats to a blender and pulse until they look like flour. Add protein powder, baking powder, cinnamon, and salt.
Pulse to combine.
Add the wet ingredients: Crack in the eggs. Add milk, Greek yogurt, banana, and vanilla. Blend until smooth and pourable.
If it’s too thick, add 1–2 tablespoons more milk.
Rest the batter: Let it sit for 3–5 minutes so the oats hydrate and the batter slightly thickens.
Heat the pan: Warm a nonstick skillet over medium heat. Lightly grease with butter or oil.
Cook the pancakes: Pour 1/4 cup scoops of batter. Cook 2–3 minutes until bubbles form and edges look set.
Flip and cook 1–2 minutes more until golden and cooked through.
Adjust heat as needed: If they brown too fast, lower the heat to medium-low to avoid undercooked centers.
Serve warm: Top with berries, a drizzle of maple syrup, and a spoonful of yogurt or nut butter for extra protein.