Preheat the oven to 375 degrees. Coat the inside of a 2-3 quart casserole dish with non-stick spray. In a large bowl, whisk together the mashed bananas, egg, brown sugar, vanilla, nutmeg, baking powder, salt, and shredded coconut until evenly combined. Add the coconut milk and whisk until smooth again. Add the rolled oats and stir with a spoon until combined. Pour the oat mixture into the prepared casserole dish and bake, uncovered, for 45 minutes. Serve warm or refrigerate until ready to eat. Pairs well with cold milk poured over top.
