I used to skip making mashed potatoes on Thanksgiving because I thought that you had to make them right before you served them. I had enough going on to worry about, and didn’t need another last minute item on the menu. A friend passed along her technique for making them in a casserole and I have never looked back. These are the smoothest, creamiest, most incredible mashed potatoes I have ever eaten.

I like to add some extra flavor and color by adding garlic and fresh chopped herbs. You can leave them plain if you like, but I really like the garlic. You can make these up to two days ahead of time. Cover the casserole with plastic wrap and let come to room temperature. Bake until the top browns and puffs up.

Garlic Herb Mashed Potato Casserole

Prep Time: 25 minutes

Cook Time: 1 hour

Total Time: 1 hour, 25 minutes

Yield: 8-10 servings

Serving Size: about 1/2 cup

Garlic Herb Mashed Potato Casserole


  • 5 pounds Yukon Gold potatoes, peeled and quartered
  • 1/2 cup (1 stick) butter, room temperature
  • 8 ounces cream cheese, room temperature
  • 1 cup heavy cream (warmed)
  • 2 cloves garlic, minced
  • 3 tablespoons flat leaf parsley, chopped
  • 1 tablespoon chives, chopped
  • 1 tablespoon cream of tartar
  • salt and pepper


  1. Add potatoes to large pot of cold water. Bring to boil and cook until fork slides out easily, with no resistance, about 20 to 30 minutes, depending size of potatoes. Drain into colander.
  2. Add butter and cream cheese to bottom of very large bowl. Rice or mill potatoes into bowl. Add half of cream and use electric mixer to whip potatoes. Add garlic, parsley, chives, cream of tartar, salt and pepper. Add more cream if needed. Check for seasonings.
  3. Transfer to buttered 9x13-inch casserole dish and smooth top. If making in advance, To remove from fridge at least 1 hour before baking. Bake in preheated 350°F oven for 30 minutes, or until heated through. Broil 1-2 minutes to brown top before serving.

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Bringing butter to room temperature helps it incorporate better with other ingredients.

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