Million Dollar Mashed Potato Casserole Recipe – the BEST potato casserole EVER!!! Loaded with tons of yummy cheese! Mashed potatoes, cream cheese, cottage cheese, sour cream, cheddar cheese, onion, garlic, butter, and Italian bread crumbs. SO easy!!! Can make in advance and refrigerate or freeze for later. The most requested potato recipe in our house! Our go-to side dish for Thanksgiving dinner.
Preheat oven to 350ºF. Spray a 9x13-inch baking dish with cooking spray.
In a large bowl, combine mashed potatoes, cream cheese, cottage cheese, sour cream, onion powder, garlic powder, parsley and 1 cup shredded cheddar cheese. Spread into prepared pan.
Combine remaining 1/2 cup shredded cheddar cheese, melted butter and bread crumbs. Sprinkle on top of potato mixture.
Bake, uncovered, for 50 to 60 minutes.
Notes:
Can make in advance and refrigerate or freeze unbaked for later.Thaw completely before baking.I used Bob Evans mashed potatoes.May substitute packaged mashed potatoes for 4-1/2 to 5 cups leftover mashed potatoes.Omit bread crumbs for a gluten-free casserole.