1 1/2 cups all-purpose flour (about 6 3/4 ounces)
1/2 cup whole wheat flour (about 2 1/2 ounces)
2/3 cup packed brown sugar
2 teaspoons baking powder
1/4 teaspoon ground cinnamon
1/4 teaspoon salt
1 cup mashed ripe banana (about 2 bananas)
3/4 cup 1% low-fat milk
3 tablespoons canola oil
1/2 teaspoon vanilla extract
1 large egg
1/4 cup chopped walnuts, toasted
6 tablespoons regular oats
5 tablespoons all-purpose flour (about 1 1/2 ounces)
2 tablespoons brown sugar
2 tablespoons butter, softened
1/4 teaspoon ground cinnamon