Preheat oven to 425F and spray a large sheet pan with non-stick spray. In a large mixing bowl, whisk together your dry ingredients: all-purpose flour, sugar, baking powder and salt. Add in the milk, beaten eggs, banana, melted butter and vanilla extract. Mix well until there are no lumps.

Spread pancake batter evenly on prepared sheet pan and bake for 14 minutes or until a toothpick comes out with moist crumbs from the center; the tops will just start to get a light golden color. Slice into 12 portions (or as desired) and serve warm with your favorite pancake toppings.