You can use light or full-fat coconut milk to preference.
Store leftovers in the fridge for up to 5 days. Note that it will thicken considerable after storing. You can thin it out by stirring in a bit of broth or water when you reheat it. To freeze, cool completely and store in freezer bags or a sealed container for 2-3 months. Thaw in the fridge before reheating.