Black Bean Soup
["1 1/2 c. dried black beans", "1 1/2 qt. water or stock", "2 Tbsp. oil, divided", "1 carrot, grated", "1 onion, chopped", "1 potato, grated", "1 rib celery, chopped", "1 bay leaf", "1 tsp. oregano", "1/4 tsp. savory or thyme", "2 tsp. salt", "1/8 tsp. pepper", "1/2 lemon, sliced thin", "juice of 1 lemon"]
["Wash beans; put in a large pot with the water or stock and 1 tablespoon oil.", "Cover tightly and bring to a boil, then reduce to a simmer for 2 1/2 hours or until beans are tender."]
["black beans", "water", "oil", "carrot", "onion", "potato", "celery", "bay leaf", "oregano", "thyme", "salt", "pepper", "lemon", "lemon"]