2Cut the submarine roll in half lengthwise, and spread each half with the roasted garlic and then the avocado. Top with the slices of tomato and brie, and sprinkle over the cheddar if using. Add some black pepper.
3Place on a baking tray, and bake for 15 minutes, or until the cheese has melted and the bread is slightly crispy. Alternatively, you can put it under the grill (broiler) for a few minutes if you’re short on time.