Week 9 pass it on: lentil and spinach soup

Ingredients

• 2 carrots, peeled and diced
• 2 celery stalks, diced
• 2 medium onions, peeled and roughly chopped
• 2 cloves of garlic, peeled and sliced
• 1 3/4 quarts stock, chicken or veg (2 litres)
• olive oil
• thumb size piece of ginger, peeled and finely chopped
• 1/2-1 fresh chile to taste, seeds removed and sliced
• 10 cherry tomatoes, cored and halved
• 2 cups red lentils (or another variety that prefer, but you may have to adjust cooking times)
• 7 cups fresh spinach, torn of large
• 1 whole lemon, juiced plus more to serve (not in Oliver's recipe but trust me!)
• 1 cup natural yoghurt