Lightly spray waffle iron with nonstick cooking spray; heat until hot. In medium bowl, combine all topping ingredients; mix well. Let stand while preparing waffles.
In large bowl, combine all-purpose flour, whole wheat flour, oats, sugar, baking powder and baking soda; mix well. Add buttermilk, egg product and butter; beat well with wire whisk.
For each waffle, spoon about 1/2 cup batter into waffle iron, spreading batter to edges. Bake about 3 minutes or until waffle is golden brown. Serve immediately with topping.