Indian sweet potato & dhal pies - Good Food Middle East

Ingredients

• 650g sweet potatoes, peeled and cut into small chunks
• 1 onion, halved and thinly sliced
• 2 carrots, scrubbed, halved and sliced lengthways
• 15g ginger, finely grated
• 2 garlic cloves, finely grated
• 2 tsp oil
• 1 tbsp curry powder
• 1 vegetable stock cube
• 2 tbsp tomato purée
• 85g red lentils
• good handful coriander, chopped, plus sprigs to serve
• generous spoonful 0% fat Greek-style yogurt
• broccoli, to serve (optional)