Scoop out the inside of your pumpkin, and separate seeds from pulp. Don't worry if there's a little pulp left on the seeds when you roast them—it only adds flavor. Scrape seeds and any attached fibers from pumpkin using a large metal spoon. Place seeds in a colander and rinse well to help separate seeds from fibers. Save the seeds from your pumpkins this year and make roasted pumpkin seeds for a healthy, Ever since I've been perfecting my process and my recipe.