Preheat oven to 350°.Spray a baking dish with non-stick cooking spray.
Mix oatmeal, cinnamon, baking powder, baking soda, and salt in a bowl.
In a separate bowl, add eggs, melted butter, brown sugar and sugar, and applesauce.
Whisk until fully combined.
Add the oat mixture to the wet ingredients and stir until fully combined.
Gently fold in blueberries with a spatula.
Transfer to prepared baking dish and top with storebought graonla or almond slices.
Bake uncovered for 25 minutes.