Preheat the oven to 300°F (150°C).

Clean the pumpkin seeds thoroughly to remove any strings or pulp, rinse under cold water, and pat dry.

In a mixing bowl, combine the cleaned seeds with olive oil and salt. Add any optional seasonings and stir until all seeds are evenly coated.

Line a baking sheet with parchment paper and spread the coated seeds in a single layer.

Roast the seeds in the preheated oven for about 20-25 minutes, stirring halfway through. Keep an eye on them, as oven times can vary.

Remove from the oven when they are golden brown and crunchy, then allow to cool for a few minutes.