Clean out each pumpkin and separate the pumpkin pulp/guts from the seeds. I place the seeds in a strainer and run under cold water to separate any remaining pumpkin guts. It’s fine if they aren’t perfectly clean. Move seeds to a kitchen towel or paper towels to pat dry.
Preheat oven to 350 degrees F. Place the pumpkin seeds on a baking sheet in a single layer. Pour melted butter on seeds and stir. Sprinkle on salt or other desired seasonings and stir again.
Bake the seeds in preheated oven, checking and stirring every 10 minutes until lightly brown and crispy.