Corn tortillas: 2 (6-inch), Black beans (cooked): 100g (1/2 cup), Sweet potato: 100g (1 small, cubed), Avocado: 50g (1/4 medium, sliced), Curtido (fermented cabbage slaw): 75g (1/3 cup), Red onion: 30g (1/4 cup, diced), Bell pepper: 50g (1/2 cup, diced), Garlic: 3g (1 clove, minced), Cumin: 2g (1 tsp), Chili powder: 2g (1 tsp), Lime juice: 10ml (2 tsp), Cilantro: 10g (2 tbsp, chopped), Olive oil: 5ml (1 tsp), Greek yogurt (low-fat): 30g (2 tbsp), Black pepper: to taste