Preheat the oven to 400ºF and line a rimmed baking sheet with parchment paper.
Cut each of the squash in half lengthwise and scrape out the seeds. Slice into half inch slices.
Place in a bowl and add the melted butter. Toss to coat and then sprinkle with ¼ cup of the Parmesan, the salt, pepper, garlic powder, and sage. Toss again to coat.
Spread the squash in a single layer on the prepared baking sheet and bake 15 minutes or until fork tender. Remove and sprinkle with the remaining Parmesan and parsely.
Notes
Storage Information: Store the leftovers in an airtight container in the fridge for up to 5 days.