Stuffed Cabbage Soup

Name: Stuffed Cabbage Soup
Ingredients: 2 tablespoons canola oil; 1 ½ pounds lean ground beef; 4 cups chopped green cabbage; 2 cups chopped yellow onion; 1 ¼ cups chopped carrots; 1 cup chopped celery; 2 tablespoons light brown sugar; 1 tablespoon smoked paprika; 1 teaspoon salt; ½ teaspoon ground pepper; ¼ teaspoon cayenne pepper; 1 (15 ounce) can no-salt-added tomato sauce; 4 cups unsalted chicken broth; ¼ cup medium-grain brown rice; 2 tablespoons chopped fresh flat-leaf parsley (optional)