Stab the pumpkin a few times with a large knife (be very careful).
Place in the microwave for 5-8 minutes.
Take out pumpkin and immediately break off stem and slice in half.
Let it cool for 5 minutes, then with a very large spoon scoop out the insides and all the stringy bits
Slice pumpkin halves into a total of 4-6 slices
With a vegetable peeler, peel the outside skin. If its very tough skin and this isn't doing it for you use a large sharp knife to cut away at the skin.
Warning...the scooping and peeling part of this is kind of annoying. I usually pour a glass of wine for this and put on the TV....
After this you can chunk it into cubes.
Place on a baking sheet lined with tin foil and coated with cooking spray. Add kosher salt and pepper and then spray the top.
Bake for 45 minutes.