Bean Soup with sausage

1 tablespoon olive oil 2 Italian sausages, diced 1 leek , sliced 2 garlic cloves , minced 2 carrots , diced 2 celery ribs , sliced 3 tablespoons all-purpose[...]

1 pound Italian sausage 2 smoked ham hocks 3 potatoes, peeled and cubed 3 stalks celery, chopped, with leaves 2 tablespoons dried parsley 3 (15 ounce) cans[...]