How to Make It
Preheat oven to 425°F. Arrange squash on a rimmed baking sheet lightly coated with cooking spray.
Sprinkle tops of squash evenly and generously with Parmesan and, if desired, black pepper.
Bake in preheated oven until golden and slightly crisp around edges, 20 to 25 minutes. Let stand 5 minutes before serving.