Use two different starchy potatoes in this recipe to create the fluffiest mashed potato casserole of all time. Don’t skip browning the butter; this is a simple technique that imparts a nutty flavor to the butter. You can substitute white cheddar cheese for the parmesan, if you wish. As quick and easy as this holiday side dish is to make the day of your dinner, it can be prepped a day ahead. Spoon the potato mixture into the casserole dish and cool it down to room temperature. Cover with aluminum foil and refrigerate. Reheat, covered, in a low oven (250°F. to 300°F.) until hot, then uncover and broil until the top is browned. The broiled top has an almost cheesy, crispy texture, while the interior stays rich and creamy. There are endless ways to use potatoes in your everyday meals, so don’t reserve this recipe for just holiday meals. Pair it with grilled chicken, pork tenderloin, ham, or even grilled steaks for a weeknight meal.
So good! I did notice the russets did not whip up smoothly like the yellow potatoes, (just slightly less cooked), so I might cut them a little smaller than the yellow before boiling...but still delicious, and great for make-ahead!
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.