Tomato, Lentil and Thyme Soup

Name: Tomato, Lentil and Thyme Soup
Prep time: 10 min
Cook time: 40 min
Total time: 40 min
Yield: 6 portions
Ingredients: 30 g olive oil; 160 g onions; 100 g celery stalks; 2 garlic cloves; 200 g red split lentils; 2 dried bay leaves; 2 - 3 sprigs fresh thyme; 400 g tinned chopped tomatoes; 800 g liquid vegetable stock; 1 ½ tsp fine sea salt; ½ tsp ground black pepper