Garlic Mashed Potato Casserole


  • 3 pounds Yukon Gold potatoes, or more as needed
  • ½ cup hot milk
  • ½ cup cream cheese, softened
  • ½ cup chopped green onions, divided
  • 1egg, lightly beaten
  • 3 tablespoons butter
  • 3 cloves garlic, crushed and chopped, or to taste
  • ½ teaspoon salt
  • ½ cup shredded Cheddar cheese
  • Directions

  • Step 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.


  • Step 2

    Preheat the oven to 375 degrees F (190 degrees C). Grease a glass baking dish.

  • Step 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.

  • Step 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.

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