Description
This Mouthwatering Mashed Potato Casserole is a creamy, cheesy, and make-ahead dream. With tangy sour cream, rich cream cheese, and a golden cheddar crust, it transforms classic mashed potatoes into a crowd-pleasing casserole perfect for holidays or comforting family dinners.
Ingredients
4 pounds russet potatoes, peeled and chopped
1 cup sour cream
8 oz cream cheese, softened
1/2 cup unsalted butter, melted
1/2 cup milk
2 cloves garlic, minced
1 1/2 cups shredded cheddar cheese
Salt and pepper to taste
Chopped chives or green onions (optional, for garnish)
Instructions
1. Place chopped potatoes in a large pot, cover with cold water, and bring to a boil. Cook until fork-tender, about 15–20 minutes. Drain well.
2. Mash the potatoes until smooth. Add sour cream, cream cheese, melted butter, garlic, milk, salt, and pepper. Stir until well combined and creamy.
3. Transfer the mashed potato mixture into a greased 9×13-inch baking dish. Spread evenly.
4. Top with shredded cheddar cheese.
5. Bake at 375°F (190°C) for 25–30 minutes, or until the cheese is melted and slightly golden.
6. Let it rest for a few minutes before serving.
Notes
Make ahead up to 2 days in advance and refrigerate until ready to bake.
For extra garlic flavor, roast the garlic beforehand or add a third clove.
Switch up the cheese—Gruyère or Monterey Jack add delicious depth.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baked
- Cuisine: American
Nutrition
- Serving Size: 1 cup
- Calories: 310
- Sugar: 2g
- Sodium: 340mg
- Fat: 19g
- Saturated Fat: 11g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 29g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 55mg
Keywords: mashed potatoes, casserole, holiday side dish, make ahead