Vegetable casserole | Good Food

Ingredients

• 2 tbsp olive oil
• 1 onion chopped
• 600g root veg, such as carrots, swede and parsnips roughly chopped
• 1 tbsp tomato purée
• 1 litre vegetable stock
• 100g pearl barley
• 3 thyme sprigs plus a small handful thyme leaves to serve
• 2 bay leaves
• 400g can chickpeas drained and rinsed (optional)