Fish tacos

Ingredients

• Juice of 1 lime
• Coriander leaves (optional)
• 2 tsp vegetable oil
• 1 clove garlic crushed
• ½ tsp ground cumin
• 250g (9oz) cod fillet
• ½ tsp ground coriander
• ¼ tsp chilli powder
• 1 small red onion thinly sliced
• 2 tomatoes chopped
• 1 avocado sliced
• 1 little gem lettuce shredded
• 6 tbsp 0%-fat Greek yogurt
• 1 red chilli seeds removed finely diced
• 2 wholemeal flour tortillas