Preheat your oven to 375F, and line a baking sheet with parchment paper. In a medium bowl, toss the pumpkin seeds with the olive oil and sea salt. Transfer the pumpkin seeds to the prepared baking sheet in a single layer. Bake for 25-35 minutes, or until the seeds are deeply golden. A zap under a broiler is a nice finishing tough, but not necessary. Remove from the oven, allow to cool for a minute or two, and enjoy plain, or stir in any of the following for some favorite variations.