Wholegrain wrap: 1 large (60g), Tuna (canned in water, drained): 85g (3 oz), White beans (cannellini, cooked): 50g (1/4 cup), Arugula: 30g (1 cup), Cherry tomatoes: 50g (1/2 cup, halved), Red onion: 20g (2 tbsp, thinly sliced), Olive oil: 10ml (2 tsp), Lemon juice: 5ml (1 tsp), Dijon mustard: 5g (1 tsp), Capers: 5g (1 tsp), Parsley: 5g (1 tbsp, chopped), Black pepper: to taste