Beef Barley Soup

Name: Beef Barley Soup
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: American
Ingredients: 1 tablespoon olive oil; 1 onion (chopped); 1 clove garlic (minced); 2 carrots (sliced); 1 rib celery (sliced); 2 cups cooked beef; 6 cups reduced sodium beef broth; 14.5 ounces canned petite diced tomatoes (with juices, 1 can); ½ green bell pepper (diced); ⅔ cup pearl barley; 1 tablespoon Worcestershire sauce; ¼ teaspoon dried thyme leaves; 1 packet beef gravy mix; 1 bay leaf; 2 tablespoons red wine (optional); 2 tablespoons chopped fresh parsley (or 2 teaspoons dried); salt and black pepper (to taste)