How to Make It
To prepare the dilly Dijon spread, combine first 6 ingredients in a bowl, stirring with a whisk. To prepare the pinwheels, spread half of Dijon spread over flatbread. Top with turkey, cheese, and spinach.
Starting with the short edge, roll up topped flatbread, jelly-roll style. Cut crosswise into 4 (1-inch) pinwheels. Serve with red bell pepper slices and carrot sticks, if desired.