Vegetable-Beef Soup
["1 to 2 lb. beef shanks, oxtails, short ribs or veal bones", "1 lb. can tomatoes", "2 carrots, sliced", "3 stalks celery (with tops), sliced", "2 medium onions, diced", "2 medium potatoes, diced", "3 c. water", "1 tsp. salt", "4 peppercorns", "3 beef bouillon cubes", "1 (10 oz.) pkg. frozen mixed vegetables, peas or lima beans*"]
["*May be added during last 2 hours of cooking."]
["beef shanks", "tomatoes", "carrots", "stalks celery", "onions", "potatoes", "water", "salt", "peppercorns", "frozen mixed vegetables"]