This soup is a wonderful thing - easy, aromatic, healthy. I like the mass amount of greens stirred through a the end, because I find lentil soups too heavy if there isn't much vegetable in them. For a flavor boost, add some smoked paprika in at the beginning, and a splash of balsamic vinegar at the end.
*Note: Leave the salt out until the lentils have cooked, otherwise they tend to not cook as thoroughly.