To a blender, add bananas, eggs, milk, vanilla, oats, baking powder, cinnamon, and salt. Blend on high until mixture is smooth. Allow batter to rest for 3-5 minutes.
Heat large skillet (or griddle) on medium heat. Lightly spray or brush the skillet with oil.
Scoop ⅓ cup pancake batter and add to the preheated skillet for each pancake. Cook for 2-4 minutes, until the pancakes begin to bubble and the edges slightly brown.
Using a flat spatula, flip the pancakes and cook for an additional 2-3 minutes. Remove from the skillet and serve.
Spray or brush the skillet and repeat with remaining batter.
Notes
Leftovers will keep in the refrigerator for 5 days and in the freezer for 3 months.