Sandy S Holiday Mashed Potato Casserole Recipe

Elevate your holiday feast with this creamy, dreamy mashed potato casserole! My mother-in-law's legendary recipe is perfect for Thanksgiving, Christmas, or any special occasion. Make it ahead of time (the day before!) for effortless holiday entertaining. This comforting classic features fluffy mashed potatoes, rich cream cheese, and a hint of garlic, all baked to golden perfection. Get ready for rave reviews!

Prep Time 30 mins
Cook Time 135 mins
Calories 307.4 kcal
Protein 13g
Rating 3.2 (6 Reviews)
Sandy S Holiday Mashed Potato Casserole 14

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Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Sandy S Holiday Mashed Potato Casserole

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How to Make Sandy S Holiday Mashed Potato Casserole

  1. Peel and chop 3 lbs russet potatoes into 1-inch pieces. Boil in salted water until easily pierced with a fork (about 15-20 minutes).
  2. Drain the potatoes thoroughly. Return them to the pot and mash until smooth.
  3. Add 8 oz cream cheese (softened), 1/2 cup (1 stick) unsalted butter (melted), 1/2 cup sour cream, 1/2 cup heavy cream, and 2 large eggs to the potatoes. Mix until well combined.
  4. Stir in 1 teaspoon salt and 1/2 teaspoon garlic salt.
  5. Grease a 9x13 inch baking dish. Pour the potato mixture into the prepared dish and spread evenly.
  6. Dot the top with 2 tablespoons of butter.
  7. Cover the casserole with foil and refrigerate overnight.
  8. Preheat oven to 350°F (175°C). Bake the covered casserole for 45 minutes.
  9. Remove the foil and bake for an additional 15-20 minutes, or until golden brown and heated through.

Nutrition Information (Approximate per serving)

Sodium

12 g

Sugar

6g

Fat

50g

Carbs

11g