Carrot and lentil soup

Ingredients

• 2 tbsp olive oil
• 2 red onions, diced
• 2 celery sticks, diced
• 2 large carrots, peeled and diced
• 2 garlic cloves, finely chopped
• 30g/1oz fresh root ginger, peeled and finely chopped
• 1 tsp sea salt
• 15g/½oz fresh coriander (leaves and stalks), washed and finely chopped
• 1 tsp ground turmeric
• 1 tsp caraway seeds
• 1 tsp ground cardamom seeds
• 200g/7oz red lentils
• 225g/8oz baby spinach, washed
• salt
• freshly ground black pepper
• 4 tbsp plain yoghurt (or plant-based yoghurt)
• 1 lime, finely grated zest and juice