Preheat the oven to 350°F.
Coat a 13- x 9-inch baking dish with cooking spray. Place the squash halves in the dish, cut-side down.
cooking spray, 1 medium acorn squash
Cover the baking dish loosely with foil, place in the oven, and bake for 30 minutes. Once finished, remove from the oven and set aside.
In a small bowl, combine the olive oil, sage, salt, nutmeg, and pepper.
1 tablespoon olive oil, 1 tablespoon fresh sage, ⅛ teaspoon salt, ¼ teaspoon freshly grated nutmeg, ⅛ teaspoon freshly ground black pepper
Carefully cut each squash half into three wedges and place them back in the baking dish, skin-side down.
Brush all the fleshy sides of the squash with the olive oil mixture.
Cover and bake for about 20 more minutes or until you can easily pierce the squash with a fork.
Sprinkle with Parmesan cheese and serve immediately.
2 tablespoons shredded Parmesan cheese