01 - Set the oven temperature to 425°F and line a large baking sheet with parchment paper.
02 - In a large mixing bowl, combine butternut squash cubes with olive oil, maple syrup, cinnamon, nutmeg, sea salt, and black pepper, tossing until evenly coated.
03 - Spread the coated squash evenly on the prepared baking sheet in a single layer, ensuring pieces are not crowded.
04 - Roast in the preheated oven for 30 to 35 minutes, turning once halfway through, until the squash is caramelized, golden, and tender when pierced with a fork.
05 - Transfer the roasted squash to a serving dish; garnish with fresh herbs and toasted nuts if desired. Serve warm.