Put water in dutch oven to cover soup bones. Bring soup bones to a boil, then add stew meat. Cook about 1 hour then add sliced onion, bay leaf and crushed tomatoes. When tomatoes are cooked and onion is soft, add mixed vegetables and succotash. Cook approximately 20 minutes and add 1 cup of uncooked elbow macaroni. Don't worry, the macaroni will swell.