- Preheat oven to 375°F.
- Combine all tomato slices, oil, garlic, salt, and black pepper; toss gently to combine.
- Coat a 13- x 9-inch glass or ceramic baking dish with cooking spray.
- Arrange the tomato slices, and mozzarella cheese if desired, as you wish.
- Next, sprinkle the breadcrumbs and Parmigiano-Reggiano cheese evenly over the tomatoes.
- Bake at 375°F until top is browned, about 5 to 7 minutes.
Recipe adapted from Cooking Light