Gather all ingredients.
Preheat the oven to 400 degrees F (200 degrees C).
Toss squash slices, Parmesan, thyme sprigs, oil, salt, and pepper together in a bowl until squash is evenly coated.
Transfer to a jelly roll pan and spread in a single layer.
Roast in the preheated oven until squash is golden brown and tender, 25 to 30 minutes.
Serve hot and enjoy!
