01 -
Set your oven racks to the upper and lower third positions, then heat to 400°F. Give two large baking sheets a generous coating of cooking spray to prevent sticking.
02 -
Add your cubed squash to a large mixing bowl. Pour the olive oil and maple syrup over the pieces, then season with salt, cinnamon, and black pepper. Toss everything together until the squash is evenly coated, then spread between your prepared baking sheets in a single layer. Make sure the pieces aren't touching or overlapping for the best roasting results.
03 -
Place both pans in the oven and roast for 15 minutes. The squash should start developing some color and becoming tender.
04 -
Remove both pans and carefully flip each piece of squash with a spatula. Switch the positions of your baking sheets (top rack to bottom, bottom to top) and return to the oven. Continue roasting for another 10-15 minutes until the squash is fork-tender and beautifully caramelized.
05 -
Remove from the oven and immediately sprinkle the fresh chopped rosemary over the hot squash. Serve while warm for the best flavor and texture.