Prepare waffle iron with cooking spray and heat up. In a mixing bowl, combine pumpkin, apples, egg whites, milk, and applesauce. In another mixing bowl, combine flour, brown sugar, baking powder, cinnamon, salt, nutmeg, ginger, and cloves. Add wet ingredients with dry ingredients just until moistened. Pour enough batter to fill two-thirds of the waffle iron. Cook until crisp and golden brown. Set aside. Repeat with remaining batter.