Whole grain tortilla (8-inch): 1 (45g), Chicken breast (grilled, sliced): 85g (3 oz), Avocado: 30g (1/4 medium, sliced), Romaine lettuce: 15g (1/2 cup, chopped), Tomato: 30g (1/4 medium, sliced), Red onion: 15g (2 tbsp, thinly sliced), Greek yogurt: 15g (1 tbsp), Dijon mustard: 5g (1 tsp), Lemon juice: 5ml (1 tsp), Black pepper: 1g (1/4 tsp)