Cheesy Mashed Potatoes Casserole

A savory make ahead cheesy mashed potato casserole that’s easy to double or triple, making your holiday cooking to-do’s a whole lot easier!

Shredded cheese, fresh snipped chives, a chopped salty ham, and rough chopped green scallions are folded in to create this ULTIMATE loaded potato dish.


Russet potatoes Salt Chives Scallions Unsalted butter Sour cream Cheese

If planning to bake immediately, preheat oven to 350°F. Butter an 8 x8-inch or a 9 x9-inch casserole with 1 tablespoon of the butter.

Peel and quarter the potatoes and add them to a large stock pot. Add enough COLD tap water to cover by 1/2-inch. Sprinkle with Kosher salt, about 1/2 tablespoon.

Bring the pot to a boil and boil the potatoes for about 15 minutes or until a fork will stab them without resistance.

Melt the butter. Using a hand mixer or a potato masher, add to the potatoes and mash coarsely.

Fold the chopped chives, dry-cured ham or prosciutto if using, and the green parts of the scallions into the mashed potatoes, along with the shredded cheese.

Spoon the mixture into the prepared casserole dish. Scatter the remaining white parts of the scallions over the top.


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