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Garlic Mashed Potato Casserole

Rated as 4.14 out of 5 Stars

"A great make-ahead recipe, and a nice amount of extra flavor instead of your standard mashed."
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1 h 20 m servings 363
Original recipe yields 6 servings (1 casserole)


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  1. Place potatoes into a large pot and cover with salted water; bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes. Drain and return to pot.
  2. Preheat the oven to 375 degrees F (190 degrees C). Grease a glass baking dish.
  3. Combine milk, cream cheese, 1/3 cup green onions, egg, butter, garlic, and salt in a bowl. Pour onto the prepared potatoes. Mash together until mixture is smooth. Spoon into the prepared baking dish. Sprinkle with Cheddar cheese and remaining green onions.
  4. Bake in the preheated oven until lightly browned, about 40 minutes.


  • Cook's Notes:
  • You can use plain or herbed cream cheese.
  • Chives can be substituted for the green onions.
  • To make ahead, cool, cover, and refrigerate for up to 24 hours; you will need to increase baking time to 55 minutes.

Nutrition Facts

Per Serving: 363 calories; 17.1 43.6 10.5 79 386 Full nutrition

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Read all reviews 5
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This was excellent! The only change I recommend is waiting 10 minutes or so to add the green onions on top. As you can see from the picture, mine got a little too brown in the last 10 minutes. N...

I agree with Kel - nothing in here about mashing the actual potatoes in the pot and when they are added to the other ingredients. Sounds like a good recipe but it's missing a step or two!

Made this for Christmas dinner side dish instead of the traditional mashed potatoes. It was a hit with everyone that came.

I made this the day before serving it. I wanted mash potatoes but didn't want to be stuck in the kitchen when company was here! It was good, but not great. I prefer my potatoes a little creamie...

Followed the recipe exactly as written. Was a great Christmas side dish to a standing rib roast. Everyone enjoyed it. Might become a Christmas menu tradition!