the night before: spray crock pot with some oil to help with clean up later. add oats, pineapple, cinnamon, and coconut milk. cook on low over night 7-9 hours.
you can mix the icing topping ingredients now and store in the fridge over night.
in the morning: stir your oatmeal well. it may seem watery at the top but if stirred it should become a more uniform consistency. in a separate bowl mash the banana and mix it and the nuts in with the oatmeal.
top each serving with the icing topping and top with extra pineapple if desired.