Lentil soup is a classic dish that is easy to make and perfect for a quick meal. Simply sauté onions, garlic, and carrots in a pot, add lentils, vegetable broth, and your favorite spices, and let it simmer until the lentils are tender. You can also add other vegetables like celery, potatoes, or tomatoes to make it heartier. Serve with crusty bread for a satisfying meal.