In a bowl, combine the meatball ingredients seasoning with salt and pepper (to taste). Mix together using your hands, then divide and shape into 16 meatballs.
Spray a frying pan with low-calorie cooking spray and set on a medium heat. Fry the meatballs for 5 minutes, until browned on all sides. Remove the meatballs from the pan and set aside.
Add all the sauce ingredients to the slow cooker pot and stir well.
Nestle the meatballs in the sauce. Then cover with a lid, and cook on low for 4 hours — or on high for 2 hours.
Remove the lid and stir. Add the chunks of brie. Re-cover and cook for a further 10-15 minutes, until melted. Sprinkle over the parsley and serve.