Cheesy Potato Casserole

"Cheesy Potato Casserole (sometimes called Funeral Potatoes) is a holiday treat that I make for Thanksgiving and Christmas dinners. I look forward to cheesy potatoes every year! Like I said, I serve these potatoes for holiday dinners, usually with turkey or ham. They would make an easy weeknight side dish but I worry about your arteries, so don’t make them *too* often. Our cheesy potatoes rarely make it to being leftovers, but they should be good 3-5 days, covered, in the fridge. They heat up really well."