Tuna (canned in water): 85g (3 oz, drained), Avocado: 100g (1 medium), Spinach: 30g (1 cup, fresh, chopped), Cherry tomatoes: 50g (1/4 cup, quartered), Red onion: 20g (2 tbsp, finely diced), Celery: 20g (1 small stalk, diced), Greek yogurt: 30g (2 tbsp), Lemon juice: 5ml (1 tsp), Dijon mustard: 5g (1 tsp), Fresh dill: 2g (1/2 tsp, chopped), Salt: 1g (1/4 tsp), Black pepper: 1g (1/4 tsp)