Whisk together flour, brown sugar, baking powder, baking soda, cinnamon, nutmeg, and salt in a medium bowl. In another bowl, mash the over-ripe bananas and whisk in milk and egg. Add dry ingredients to wet and stir just until combined.
Spray a 12-inch skillet with cooking spray and heat over medium heat until hot. Add 1 tablespoon butter to the pan and pour about 1/4-cup of batter into the pan for each pancake, cooking three at a time. Cook 2 to 3 minutes until each pancake bubbles at the side. Flip and cook until golden brown on both sides. Remove banana bread pancakes from pan and keep warm.
Repeat with remaining pancake batter, adding 1 tablespoon butter to the pan with each batch. Serve banana bread pancakes with fresh sliced bananas and pecans, if desired and top with syrup and Reddi-wip®.