Preheat the oven to 400 degrees F. In a large bowl, combine the carrots together with the olive oil, corn starch and Hidden Valley® The Original Ranch® Salad Dressing & Seasoning Mix, and toss until well coated. Using a sheet tray or quarter sheet pan, spray generously with cooking spray. Arrange the carrots in a single layer on rack and bake for 25 to 30 minutes or until crispy. Bake for 35 minutes for extra crispy fries.