[Taken from TLC Family , then adapted a bit]
Preheat oven to 350°F. Separate the pumpkin seeds from the fibers. Wash, drain, and dry the seeds on paper towels. Coat 11/2 cups seeds with 1 teaspoon vegetable oil. Toss the seeds with salt (or omit salt and toss seeds with any of the suggested seasonings below), and spread them in a single layer on a baking sheet. Bake, stirring occasionally, 12 to 15 minutes or until golden brown.
Sugar and Spice Pumpkin Seeds
Add 1 tablespoon sugar, 1/2 teaspoon ground cinnamon, and 1/8 teaspoon ground allspice. (I used Pumpkin Spice instead of Allspice. Super good!)