Spicy sweet potato & lentil casserole | Fast Running

Ingredients

• 2 tbsp sunflower or olive oil
• 700g sweet potatoes, peel and thickly sliced into chunks
• 2 parsnip, thickly sliced
• 4 carrot, thickly sliced
• 1 red onion, chopped
• 2 garlic clove, crushed
• 300-400g of red or green lentils (canned in water is fine)
• 2 tbsp curry paste or curry powder
• 1 tbsp cumin
• 1 litre/1¾ pints vegetable stock
• optional – a handful of coriander, roughly chopped