Chicken, Sweetcorn and Cabbage Crockpot Soup (Low Fat, Clean and GF)

Name: Chicken, Sweetcorn and Cabbage Crockpot Soup (Low Fat, Clean and GF)
Prep time: 10 min
Cook time: 6 h
Total time: 6 h 10 min
Cuisine: European
Ingredients: 500g (17½ oz) chicken (cooked); 1 large yellow onion (roughly chopped); 2 cloves garlic (roughly chopped); 100g (3½ oz) cabbage (shredded); 250g (8¾ oz) tinned sweetcorn; 1 red bell pepper (roughly chopped); 1 tbs Worcestershire sauce; 1 tbs fresh chives (chopped); ½ tsp oregano; ¼ tsp thyme; 1 bay leaf; sea salt and black pepper (to personal taste); 500-750ml (2-3 cups) homemade chicken stock (see note 1); fresh parsley for decoration (optional)