Herby chicken gyros - Good Food Middle East

Ingredients

• 1 large skinless chicken breast
• rapeseed oil, for brushing
• small garlic clove, crushed
• ½ tsp dried oregano
• 2 tbsp Greek yogurt
• 10 cm piece cucumber, grated, excess juice squeezed out
• 2 tbsp chopped mint, plus a few leaves to serve
• 2 wholemeal pitta breads
• 2 red or yellow tomatoes, sliced
• 1 red pepper from a jar (not in oil), deseeded and sliced