This lentil soup is a perfect comfort food for a cold day. The combination of lentils, spinach, and lemon creates a delicious and healthy soup that is easy to make. The lentils are cooked with onions, garlic, and carrots until they are tender and then blended to create a creamy texture. The spinach is added at the end to give the soup a fresh and vibrant flavor. The lemon juice adds a tangy and refreshing taste that balances the earthy flavor of the lentils. This soup is perfect for a quick and easy lunch or dinner.