Witlof, Celery and Pear Salad

2-3 heads of witlof, leaves separated
2 tender stalks of celery, thinly sliced
1 firm but ripe pear, thinly sliced
1 x 400 gram tin cooked chickpeas, drained and rinsed

Dressing
3 tablespoons olive oil
1 teaspoon Dijon mustard
1 clove garlic, crushed
1-2 tablespoons good white wine vinegar
1 tablespoon finely chopped chives
sea salt and freshly ground pepper