Chicken Shawarma - Fika 'n' Food

Ingredients

• 1.25 kg chicken breast
• 2 tsp ground cumin
• 2 tsp ground coriander seed
• 2 tsp ground allspice
• 1 tsp paprika
• 1 tsp onion powder
• 2.5 dl Greek yogurt
• 3 tbsp olive oil
• 2 tbsp lemon juice
• 2-3 tsp salt
• 0.25 tsp ground black pepper
• 8 tortilla (or pita)
• 1 small head iceberg lettuce
• 1-2 onion sliced
• 3 tomato