Kohlrabi Chicken Salad

Favorite use of kohlrabi so far! When raw, it has a celery-like crunch and taste, so I thought it would be good in chicken salad:

Recipe(ish):
- 3-4 chicken breasts, cooked & diced (I poached mine)
- half a kolhrabi bulb, peeled & diced small
- couple of green onions, chopped (I used our red spring onions)
- handful of grapes, halved
- handful of chopped pecans
Dressing:
- 1/2 cup mayonnaise
- 1/4 cup sour cream (or plain yogurt)
- 1 Tbl. dijon mustard
- splash of lime/lemon juice
- salt & pepper

I also added some chopped lemon verbena from our garden; any kind of fresh herbs would be great.