How can I prepare and roast butternut squash halves to perfection?

To prepare and roast butternut squash halves to perfection, start by cutting the squash in half lengthwise and scooping out the seeds. Brush the cut sides with olive oil, sprinkle with salt and pepper, and place them cut-side down on a baking sheet. Roast in a preheated oven at 400F for about 45-50 minutes, or until the squash is tender and caramelized. Enjoy as a delicious and nutritious side dish!