1Heat oven to 350°F. Rinse pumpkin seeds; remove any pulp and fiber. Pat seeds dry with paper towels. Spread seeds in ungreased 15x10x1-inch baking pan. Sprinkle with oil; stir to coat.
2Bake 15 to 20 minutes, stirring once, until deep golden brown and crisp.
3Sprinkle warm seeds with taco seasoning mix. Cool completely, about 10 minutes, before serving.