This Easy Lentil Soup recipe contains only 6 ingredients and you can choose from 3 optional toppings (or use them all). The soup is so easy to make and very filling. If you serve it with some some delicious bread you have a full meal. For sure you can use this Easy Lentil Soup also simply as an appetizer and serve my Vegan Lentil Burger or Veggie Burger with Cauliflower as main dish.