Roasted Pumpkin Seeds Roasted Pumpkin Seeds Advocate file photo -- Pumpkins, a winter squash, are a sure sign that fall is here. Allrecipes.com Comments Roasted Pumpkin Seeds Makes about 11/2 cups. Recipe is from Allrecipes.com. 11/2 cups raw whole pumpkin seeds 2 tsps. butter, melted Pinch of salt 1. Preheat oven to 300 degrees. 2. Toss seeds in a bowl with the butter and salt. Spread in a single layer on a baking sheet and bake for about 45 minutes or until golden brown. Stir occasionally.