This 4-Ingredient Slow Cooker Potato Casserole delivers soft, creamy potatoes with a rich cheddar topping and almost no prep. It is an easy, comforting side dish for family dinners, lunches, or casual gatherings.
Store leftovers in a covered container in the refrigerator for three to four days. Reheat portions in a loosely covered microwave-safe bowl in short bursts until hot, then stir in a small spoonful of sour cream if desired. A larger amount can be reheated in a covered baking dish at a low oven temperature. The casserole may be held on the slow cooker's warm setting for a short time; gently stir around the edges before serving without mashing the potatoes.
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