Step 4
Combine oats, all-purpose flour, whole wheat flour, baking powder, baking soda, cinnamon, nutmeg, salt, applesauce, egg whites, milk, brown sugar, oil, and vanilla in a large bowl. Mix until blended. Fold in raspberries, blueberries, and blackberries; batter will be lumpy and thick. Divide batter evenly into the prepared muffin cups.