From eatingwell.com 

1 small winter squash (1 1/4 lbs), halved and seeded                                             

1/4 tsp ground cinnamon

1/4 tsp salt

2 tbsp pure maple syrup

1 tsp butter

Preheat oven to 400. Spray a 9×13 inch baking pan with cooking spray.

Place squash cut side down in prepared baking pan. Bake until soft, about 50 minutes. Let cool for 10 minutes.

Scrape the soft squash flesh into medium bowl. Stir in syrup, butter, cinnamon and salt with a fork, mashing the squash until somewhat smooth.