Use nonstick spray to coat two baking sheets. Grab a large bowl and add your squash cubes. Add the olive oil, maple syrup, and spices to the bowl. Toss until the squash is coated in all the delicious flavors.
Divide the squash between the baking sheets and discard any excess liquid from the bottom of the bowl. Make sure the squash is spread into a single layer on the baking sheets and not overly crowded. This will ensure the air can circulate in the oven and the squash roasts properly. If you crowd the squash on the pan, it will steam and not develop the caramelization we’re after.
Place your baking sheets in the oven and bake for 15 minutes at 400 degrees F. After 15 minutes, remove the pans, turn the squash with a spatula, and return to the oven.
Bake until the squash is tender (about 10 to 15 additional minutes). Remove from the oven, and scatter fresh rosemary over the top. Serve warm and ENJOY!