Preheat oven to 425°F and line a large baking sheet with parchment paper.
Clean the exterior of the squash then cut into wedges, discarding the seeds and pulp.
Arrange squash on the baking sheet. Drizzle with olive oil, season with garlic powder, salt and pepper.
Roast for 45 minutes or until squash is fork tender.
Remove from the oven, sprinkle the grated cheese on top of each piece of squash and return to the oven under a high broil until the cheese melts and starts to brown, about 3 minutes.