There are a lot of inexpensive baking pumpkins still at stores!
I roast pumpkin by cutting up a washed baking pumpkin around 2 lbs by cutting it up like cantaloupe slices after taking out the seeds. I will have between 8 and 10 slices that look like ribs.
I mix up 3 tbls of melted butter with 1/2 tsps of cinnamon, ground cloves, nutmeg, and cardamom. Brush this mixture all over the slices and drizzle with agave nectar. Cook at 400 for 15 min, baste with any drippings on your baking sheet, and bake another 15 min. Top with whipped cream if you feel like a little cheat.
Roast the pumpkin seeds at 350 for around 40min after tossing them in some olive oil, cumin, garlic salt, and a bit of chili powder. Mmmmmmmmmmm.