I made this recipe for a Fourth of July party and it was a hit with everyone. The cooking time is really off. I cooked it for one hour and the potatoes were still hard and I chopped them very small due to other reviews. I increased the oven to 400 degrees and cooked the potatoes for an added 15 mins., removed the foil, added appx. 1 more cup of the cheese and baked for 5 added mins. I also increased the Ranch dressing to 3/4 cup, increased the cheese to one cup, and added a 2.8 oz jar of real bacon bits. I made it the day before and placed in the microwave to reheat. Will be making this dish again.