BEST VEGETABLE BARLEY SOUP

INGREDIENTS:

1 yellow onion, chopped
2 carrots, cut into ½-circles
2 stalks celery, chopped
1 medium sweet potato, peeled and cut into ¾-inch pieces
4 garlic cloves, minced
1 ½ cups frozen green beans
¾ cup pearl barley
1 tsp paprika
1 tsp dried oregano
¾ tsp dried thyme
½ tsp salt
½ tsp ground pepper
1 (14 oz.) can petite diced tomatoes
6 cups low-sodium vegetable broth
2 cups water
¼ cup minced flat-leaf parsley