Chicken Shawarma Bowl with avocado tzatziki

Ingredients

• 2 chicken breast or thigh fillets, sliced
• 1 teaspoon shawarma spice, found at any Middle Eastern Grocer
• ¼ teaspoon sumac
• ¼ teaspoon paprika
• ¼ teaspoon turmeric
• salt & pepper to taste
• 1 tablespoon Greek yoghurt
• 1 tablespoon vinegar
• 2 tablespoons olive oil
• 2 Hass Avocados, reserve half an Avo for garnish
• 1 cup Greek-style yoghurt
• 2 small garlic cloves, minced or crushed
• juice of half a lemon
• salt to taste
• 1 tablespoon olive oil
• 1 tablespoon chopped fresh dill
• 1 tablespoon chopped fresh mint
• 1 small finely chopped Lebanese cucumber