Preheat oven to 300°F. Line rimmed baking pan with parchment paper.
Scoop out seeds from pumpkin; discard stringy pulp and rinse seeds in a colander under cold water. Shake pumpkin seeds in colander to remove excess water; you should have about 1 cup seeds. Spread seeds in single layer on prepared pan. Bake 25 minutes.
Increase oven temperature to 325°F. In large bowl, whisk desired seasoning ingredients (Louisiana Spice, Sweet Pumpkin Pie or Everything). Add oil and seeds to seasoning mixture; toss to coat. Spread seeds in single layer on same parchment-lined pan; bake 20 minutes (15 minutes for Louisiana Spiced seasoning) or until seeds are golden brown, stirring once.
Approximate nutritional values per serving:
(¼ cup Louisiana Spiced): 110 Calories, 7g Fat, 1g Saturated, 0mg Cholesterol, 280mg Sodium, 9g Carbohydrates, 3g Fiber, 0g Sugars, 0g Added Sugars, 3g Protein
(¼ cup Sweet Pumpkin Pie): 120 Calories, 7g Fat, 1g Saturated, 0mg Cholesterol, 290mg Sodium, 13g Carbohydrates, 3g Fiber, 3g Sugars, 3g Added Sugars, 3g Protein
(¼ cup Everything): 120 Calories, 8g Fat, 1g Saturated, 0mg Cholesterol, 480mg Sodium, 11g Carbohydrates, 4g Fiber, 0g Sugars, 0g Added Sugars, 4g Protein