Preheat oven to 350 F. Mix all dry ingredients together in a large bowl. Mix wet ingredients in another bowl. Add wet ingredients to dry ingredients and mix well.
Spray a 12×9 pan (or you can use a round cake pan) with cooking spray. Add oatmeal mixture to the pan.
Top with blueberries and bake 25-30 minutes or until knife comes out clean.
Recipe Notes
I topped mine with Greek yogurt “frosting” (Greek yogurt mixed with whey protein) and more peanut butter!
