Preheat oven to 350°F.
Add banana, eggs, yogurt, applesauce, oil, brown sugar, and vanilla to jar. Secure lid and select "Batter." Add whole wheat flour, ¾ cup rolled oats, baking powder, salt, cinnamon, and pecans to jar. Secure lid and press "Pulse" 4–6 times or until dry ingredients are incorporated. Fold in blueberries.
Pour batter into greased 9-inch-x-13-inch baking pan. Sprinkle with remaining ¼ cup rolled oats. Bake for 30–35 minutes or until toothpick inserted in center comes out clean. Cool completely. Remove from pan, and cut into 15 bars. Bars can be individually wrapped and stored for 3 days or frozen for 3 weeks.