Garlic Mashed Potato Casserole

This cheesy garlic mashed potato casserole recipe, with a golden crust and buttery interior, is the ultimate comfort food. Make it ahead and freeze it.

• Preparation Time: 15 mins
• Cooking Time: 1 hr 5 mins
• Total Time: 1 hr 20 mins
• Calories: 363 Calories

Ingredients

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

Recipe Instructions

Step 1

Bake in the preheated oven until lightly browned, about 40 minutes.

Step 2

Gather the ingredients.

Step 3

Place potatoes in a large pot and cover with lightly salted water. Bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes. Drain and return to pot.

Step 4

Preheat the oven to 375 degrees F (190 degrees C). Grease a glass baking dish. Combine milk, cream cheese, ⅓ cup green onions, butter, egg, garlic, and salt in a bowl; add to potatoes. Mash until smooth; transfer to the prepared baking dish. Sprinkle with Cheddar cheese and remaining green onions.