Components of the fruit pizza cookies can be made the night before as long they are assembled just before serving. The best way to prep them ahead is to bake the cookies the day before and store fully cooled in an airtight container. The filling can be made up to a week ahead and stored it in an airtight container or cover tightly with plastic wrap and place in the fridge for up to 5 days. Most of the fruit is best if cut on the day of serving. Bananas shouldn’t be cut until the moment you want to serve because they turn brown very quickly.