Preheat Oven : Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly grease.
Prepare Squash : Peel the butternut squash, cut in half, remove seeds, and cut into 1-inch cubes.
Season Squash : In a large bowl, toss squash cubes with olive oil, minced garlic, thyme, rosemary, salt, and black pepper until evenly coated.
Arrange on Baking Sheet : Spread the seasoned squash in a single layer on the prepared baking sheet to ensure even roasting.
Roast Squash : Roast in the preheated oven for 30–35 minutes, tossing halfway through, until the squash is tender and slightly caramelized on the edges.
Serve u0026 Garnish : Transfer to a serving dish and garnish with fresh parsley or a sprinkle of grated Parmesan if desired. Serve warm.