Preheat oven at 425 degrees.
Place crust directly on rack in oven and bake for 2 minutes.
Combine mushed banana, peanut butter, and maple syrup.
Spread mixture over the baked Ultra Thin Pizza Crust.
Sprinkle chocolate chips and walnuts over peanut butter mixture.
Top with banana slices.
Drizzle caramel syrup to finish.