The flavor of  kohlrabi is a cross between a turnip and a cucumber in that it is a crisp, mild vegetable with a slight peppery flavor. It is also a touch sweet, a bit like a very crisp apple. Some feel the flavor is a bit like jicama.  Mild & refreshing green.  Great to add to sandwiches, top of your salad or even on one of your favorite savory appetizers.