Fry it. I remember begging my Mum for fried butternut squash as a kid.
Peel, seed and cut into chunks about 2 inches thick. Boil in water until squash is tender when poked with a fork but doesn't fall apart.
Remove and drain well.
Take a pan with about an inch or 2 of oil and heat. Add boiled squash pieces and fry on each side until the outside is crispy.
End result is a lovely crispy outside with a wonderful soft sweet inside.