Remove the ribs from the kale, slice the leaves into thin ribbons and place in a large bowl. Drizzle with a little olive oil and pinch of salt and use your hands to massage the kale for a few minutes until it is glossy and tender.
Add cucumbers, tomatoes, beans, olives, pepperoncinis and mozzarella pearls. Vigorously whisk or shake together the mustard dill dressing. Pour dressing all over the salad and toss well to combine.
