Barley and Lentil Soup

2 boxes (32 oz each) Beef Broth (8 cups)
2 cloves garlic, minced
1 tsp. dried oregano leaves, crushed
4 large carrots, sliced (about 3 cups)
1 large onion, chopped (about 1 cup)
1/2 c. dried lentils
1/2 c. uncooked barley

Mix broth, garlic, oregano, carrots, onion, lentils and barley in a 3 1/2 to 6 quart slow cooker. Cover and cook on low 8 to 9 hours or until tender. (Or on high for 4 to 5 hours)