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Good Housekeeping published a mashed potato casserole recipe designed to be prepared up to two days before serving. It makes 10 servings and uses gold potatoes, butter, cream cheese, sour cream, milk and scallions; the recipe calls for a longer bake when the casserole is chilled.
Good Housekeeping has published a make-ahead mashed potato casserole that can be assembled and refrigerated unbaked for up to two days, then baked before serving. The recipe yields 10 servings and gives holiday cooks a way to prepare a substantial side dish in advance, though the chilled casserole needs about 38 to 42 minutes in the oven.
The casserole starts with 4 pounds of peeled, quartered gold potatoes, boiled in salted water until tender, then mashed or passed through a food mill or ricer. The potatoes are folded with butter, cream cheese, sour cream and warmed whole milk, seasoned with salt, and mixed with most of the sliced scallions. The remaining scallions are reserved for serving.
For immediate serving, the recipe directs cooks to spread the mixture in a buttered 9-by-13-inch dish and bake at 425°F for 25 to 30 minutes, until bubbling and browned in spots. After baking, it should rest for 15 minutes. For advance preparation, cover the unbaked dish and refrigerate it for up to two days; when ready, bake at the same temperature for 38 to 42 minutes, until warmed through and browned.
Good Housekeeping lists the recipe at 321 calories per serving, based on its nutrition information. The source gives additional estimates of 18.5 grams of fat, 352 milligrams of sodium and 5 grams of protein per serving. Those figures are presented as approximate values, not individualized nutrition guidance.
A Side Dish Prepared Before Guests Arrive
The practical appeal is timing: the potatoes can be cooked, mashed and placed in their baking dish before the day of the meal. That shifts much of the work away from the final cooking window, when oven space and attention may be needed for other dishes. The advance window is limited to up to two days in the refrigerator, rather than an indefinite storage period.
The recipe does not eliminate the need for day-of cooking. A chilled casserole still needs a relatively long bake, and the instructions say to bake it until it is warmed through and golden in spots. Cooks planning a meal around several oven dishes will need to account for that time and the recipe’s 425°F oven temperature.
Its ingredients also make the dish rich and dairy-based: it includes butter, cream cheese, sour cream and whole milk. That matters for guests who avoid dairy or need to identify ingredients. The source does not offer substitutions or describe the recipe as suitable for particular dietary restrictions.
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How the Recipe Builds Its Texture
The recipe’s method is straightforward: boil the potatoes, drain them, mash them while hot, fold in the dairy ingredients, and bake the mixture in a casserole dish. It allows either a food mill or ricer for processing the potatoes, or a masher used directly in the pot. The instructions call for gentle folding after the potatoes are processed.
Good Housekeeping says its culinary team tests each recipe at least three times, and often more, varying appliances and ingredient brands and gathering feedback from tasters. That is the publication’s description of its testing process; the supplied report does not provide specific test results or comparisons for this casserole.
““Save yourself some time by making this creamy mashed potato casserole up to two days in advance.””
— Good Housekeeping recipe introduction
Storage and Serving Details to Check
The recipe specifies refrigeration for up to two days, but the supplied report does not state a refrigerator temperature, a safe internal temperature for reheating, or how to handle leftovers after serving. It also does not clarify whether the casserole should be brought toward room temperature before baking; the written directions say to remove it from the refrigerator and bake, without giving a waiting period.
The report does not provide a tested adjustment for different dish materials, ovens, or casserole sizes. Its 38-to-42-minute estimate is tied to the stated recipe and the instruction to check that the dish is warmed through and browned. The published nutrition figures are estimates, and no ingredient substitutions or allergen-free versions are included.
Bake It Before the Meal
For the make-ahead version, prepare the potato mixture, spread it in the buttered casserole dish, cover it, and refrigerate it for no more than two days. On serving day, bake at 425°F for 38 to 42 minutes, checking that it is warmed through and browned in spots. Let it rest for 15 minutes, then finish with the reserved scallions.
Good Housekeeping’s page invites readers to comment if they make the recipe. The source material does not announce a follow-up, a change to the instructions, or additional testing results.
Key Questions
How far ahead can the casserole be made?
Good Housekeeping says to cover the unbaked casserole and refrigerate it for up to two days.
How long does the chilled casserole bake?
Bake it at 425°F for 38 to 42 minutes, until warmed through and golden in spots. The recipe gives a shorter 25-to-30-minute bake for a casserole that has not been refrigerated.
How many people does the recipe serve?
The stated yield is 10 servings. Good Housekeeping lists approximately 321 calories per serving.
What ingredients are in the casserole?
The main ingredients are gold potatoes, butter, cream cheese, sour cream, whole milk, salt and scallions. It contains dairy; the source does not provide a dairy-free variation.
Source: goodhousekeeping.com
