Lentil Soup with kielbasa

1/2 lb fully cooked Polish kielbasa , quartered and sliced 1 onion , chopped 4 carrots , peeled and chopped 2 celery ribs , chopped 1 1/2 cups dried lentils 6[...]

1 lb lentils 1/2 lb bacon or 1/2 lb pancetta , diced 1 leek , diced,white part only 2 medium onions , diced 2 medium carrots , diced 2 quarts chicken stock or[...]