Prep the Squash
Preheat your oven to 400°F (200°C).
Line a baking sheet with parchment paper or aluminum foil.
Cut the acorn squash in half lengthwise using a chef’s knife. Scoop out the seeds with a spoon. Slice each half into ½-inch thick slices.
Season the Squash
In a large bowl, toss the squash slices with olive oil, maple syrup, cinnamon, salt, and nutmeg until evenly coated.
Roast the Squash
Arrange the seasoned squash slices in a single layer on the prepared baking sheet.
Roast in the preheated oven for 15 minutes.
Prepare the Pecan Topping
In a small bowl, mix the chopped pecans with brown sugar and a drizzle of maple syrup.
Add the Topping
After 15 minutes, flip the squash slices with a spatula or tongs. Sprinkle the pecan mixture evenly over the squash.
Finish Roasting
Return the squash to the oven and roast for an additional 10-15 minutes, or until the squash is tender and the pecans are toasted.
Serve
Transfer the roasted squash to a serving platter and enjoy warm.