The whipped feta dip can be refrigerated for up to 3 days. Let stand at room temperature for 30 minutes and then stir before serving. It can also be served with chips and bread. The dried herb oil can be stored in an airtight container at room temperature for up to 1 month. Shake it up before using. Belgian Endive: The juicy, crisp texture combined with the nutty-sweet flavor and natural cup shape make these spears a crudite must. Plus, Belgian endive practically preps itself! Ninja Radishes: These medium-size radishes are oblong with a pale purple skin and they're purple and white on the inside. Because they tend to be firmer than most radishes, I prefer to cut them into thin slices. Romanesco: Romanesco is related to cauliflower, but it's emerald green and spiky, mild in flavor, and super crunchy.