Baked Butternut Squash - Joyful Momma's Kitchen 1 butternut squash 2 Tbsp butter, melted 1/4 tsp salt 1/4 tsp ground cinnamon 1/4 tsp ground nutmeg 1/8 tsp ground black pepper 6 tsp brown sugar, divided Place squash in an 11X7 baking dish coated with cooking spray.  Cover and bake at 350 degrees for 40 minutes.  Uncover and bake 20-30 minutes until tender.