This is just a quick little recipe that I have made several times with the seeds from pumpkins. Basically, all you do is chuck the seeds in a bowl with enough cinnamon, pumpkin pie spice, and nutmeg to coat, and mix it all together. Then roast the seeds in the oven for about half an hour at 325, until they are slightly browned. Quite delicious.
And a word on the seeds- wash the stringy pumpkin bits off immediatly after you finish carving up the pumpkin. That way it's a lot easier to get the strings off, and they have not dried on the seeds. The clean seeds can wait in a container in the fridge for quite a while- I know atleast a day or two.