Vegetable biryani

INGREDIENTS

• 1 small carrot
• 1 medium potato
• ¼ green pepper
• ¼ red pepper
• 25g/1oz French beans
• 50g/2oz frozen peas
• 1 tsp tomato purée
• ½ tsp finely chopped green chillies
• 1 tsp garam masala
• ¼ tsp ground turmeric
• 225g/8oz cooked basmati rice
• 1 small onion
• 4 roasted cashew
• ½ tsp cumin
• ½ tsp red chilli powder
• , to serve yoghurt