Beef Mushroom Barley Soup

1 cup barley, or similar grain Olive oil 2 lbs cubed stew meat 2 cups diced carrots 1 1/2 cups diced celery 1 medium onion, chopped 1/2 lb cremini mushrooms, chopped 2 bay leaves 10 cups beef broth Prepare barley using directions provided. In a large Dutch oven, brown...