In a medium bowl, whisk eggs slightly.
Add milk, butter, and vanilla and whisk to combine.
Stir in bananas.
In a large bowl, whisk together flour, sugar, baking powder, cinnamon, nutmeg, and salt.
Pour banana mixture into the dry ingredients and stir to fully combine.
Preheat waffle iron as per manufacturer's instructions. *See notes
Spoon waffle batter onto heated waffle iron and cook for 2-3 minutes or until cooked through.
Repeat with remaining batter.
Serve warm with choice of toppings.