Preheat the oven to 375 degrees. Grease a 9x9 inch baking dish with olive oil or coconut oil spray.
In a large mixing bowl, combine the oats, chia seeds, baking powder, cinnamon, shredded coconut (if using) and sea salt. Mix all the ingredients well to combine.
Add in the melted coconut oil, egg, vanilla, maple syrup and almond milk. Mix all the ingredients well to combine.
Fold the frozen cherries and berries into the mixture. Pour the mixture into the prepared baking dish.
Bake the oatmeal for 40 minutes. Remove it from the oven and allow it to cool for about 10 minutes.
Cut the baked oatmeal into six servings. Serve immediately or store leftovers in the refrigerator to be used throughout the week. If desired, top with a sprinkle of brown sugar stevia or a drizzle of maple syrup, and/or almond butter. Can be served cold or reheated.