Preheat your oven to 400 degrees. Slice the cabbage into 3/4 to 1-inch thick steak slices.
Brush the slices with olive oil on both sides and place onto cookie sheet. Season with garlic, salt and black pepper. Then, roast for 20 minutes or until caramelized.
While the cabbage steaks are in the oven, cook bacon in large skillet on medium heat until crisp. Set cool down for 5 minutes. Chop bacon and set aside.
Remove cabbage from the oven. Top with mozzarella cheese and return it to the oven to roast more 5 minutes or until cheese is melted.