Lentil soup is a nutritious and easy-to-make soup that is packed with protein and fiber. It starts with sautéing onions, carrots, and celery in olive oil, then adding garlic, lentils, vegetable broth, and spices like cumin and paprika. The soup is simmered until the lentils are tender and the flavors have melded together. It's a satisfying and healthy soup that can be enjoyed as a main course or a side dish.