Butternut Squash
Cut it in half the long way and scoop out the seeds. Put some brown sugar, butter and maybe some ginger or cinnamon in the hollow. Bake at 350 until it's soft. Yummy. Or seed it, cut it into large cubes or slices, coat them with butter and a little bit of vanilla and roast them on a cookie sheet until soft. Or mash it like you did and make a pie filling with it. I love squash. Try a Blue Hubbard sometime. They're large and a bit difficult to cut up but exceedingly tasty.
Catspaw, feeling a bit peckish at the moment.