Preheat your oven to 350°F (175°C). In a large bowl, mix the wet ingredients: applesauce, mashed bananas, maple syrup, and nondairy milk. In a separate bowl, combine the dry ingredients: baking powder, cinnamon, rolled oats, and protein powder. Add the dry ingredients to the wet ingredients and mix until just combined. Gently fold in the chopped apple. Pour the mixture into a prepared baking dish (e.g., 8x8 inch) and spread evenly. Bake at 350°F for 35 minutes, or until golden brown and set. Let cool before cutting into bars.
