In a medium size bowl mix the rolled oats and coconut milk with 1 cup of water. If you're using, add the maple syrup or honey.
Divide the overnight coconut oatmeal between 4 1-cup mason jars or small bowls. Cover and leave in your fridge overnight.
In the morning, enjoy the oatmeal cold with any or all of the toppings.
Turn this recipe into a single serving breakfast by using 1/2 cup oats, 1/4 cup coconut milk and 1/4 cup of water.The overnight oats are best eaten within 12 hours, but will last up to 4 days in your fridge.