Yes, this recipe can be stored for leftovers, but it is best consumed within a day or two of preparation. If you have leftovers, store them in an airtight container in the refrigerator. However, keep in mind that the texture may change over time as the fruit releases its juices and the marshmallows and coconut may become softer. It is not recommended to freeze ambrosia salad as it may not hold up well to freezing and thawing, resulting in a watery and separated texture upon thawing