preheat oven to 350°F

Mix ranch dressing, dill, cheese, and bacon in a bowl. Add potatoes, salt and pepper. Toss to coat potatoes. Spray baking dish then add potatoes. Cover with foil. Bake for 1 hour, stirring half way through cooking process so potaoes do not burn. Remove foil. Raise temperature to 400°F. Gently stir again. Bake for an additional 15 minutes, then add more cheese. Bake a few more minutes until everything is bubbling on top