Nibblous | lentil and lemon soup

Ingredients

• 2 tbsp olive oil
• 1 large onion, finely chopped
• 1 clove garlic, crushed
• 150g red lentils, washed
• 570ml vegetable stock
• 1 400g tin of chopped tomatoes
• 2 tsp tomatoe purée
• 2 tbsp finely chopped fresh thyme
• salt and freshly ground black pepper
• juice of 1/2 lemon