Slow Cooker Irish Bean and Cabbage Stew

Name: Slow Cooker Irish Bean and Cabbage Stew
Cuisine: European, British
Ingredients: INGREDIENTS; 1 medium onion, chopped; 2 medium stalks celery, chopped; 3 cloves garlic, minced; 1/2 head cabbage, chopped; 3 medium carrots, sliced; 1 lb. red potatoes, scrubbed & cut into large dice; 1/3 c. pearled barley, rinsed; 1 bay leaf; 1 t. dried thyme; 1/2 t. caraway seeds; 1/2 t. dried rosemary, crushed; 1/2 t. freshly ground black pepper; 6 c. low-sodium vegetable broth; 1- 15-oz. can no-salt-added beans (your choice), drained and rinsed; 1- 15-oz. can no-salt-added diced tomatoes, with juice; 2 T. chopped fresh parsley (optional)