Preheat the oven to 350F
In a mixing bowl, combine rolled oats, cinnamon powder, baking powder, mulberry, chia seeds, ½ cup walnuts, salt, and Splenda sweetener
In a another mixing bowl, whisk together eggs, vanilla extract, coconut milk beverage and melted coconut oil until well blended. Slowly pour the liquid into the rolled oats mixture.
Place and arrange apple chuncks in the bottom part of casserole dish
Pour the rolled oats mixture on top and sprinkle with the remaining walnuts
Bake uncovered 40 to 45 minutes or until most liquid is absorbed