How to Make It
Mix cucumber slices, carrot ribbons, ginger, jalapeño, vinegar, sugar, and salt in a medium bowl. Set aside, stirring every 10 minutes, until pickled, about 30 minutes. Drain.
Stir together mayonnaise, scallions, lime zest and juice in small bowl. Spread on both sides of baguette. Place turkey on one side of baguette. Scatter pickled carrots and cucumbers over turkey, then top with herbs. Top with the other side of baguette. Slice in half.