Vegetarian Chickpea Rolls

Ingredients

• • can (19 oz/540 ml) chickpeas, rinsed and drained
  • 1/3 cup (75 ml) mayonnaise, plus more for serving
  • 1 lemon, zest finely grated
  • 1 tbsp (15 ml) lemon juice
  • 1 pinch cayenne pepper
  • 1 small green apple, cored and cut into small dice
  • 1 celery stalk, thinly sliced, plus leaves for serving
  • 1/2 small red onion, chopped
  • 1/4 cup (10 g) flat-leaf parsley, finely chopped (optional)
  • 2 tbsp (30 ml) olive oil
  • 8 hot dog buns, toasted