Gourmet Mashed Potato Casserole

Prep: 10 min Cook: 60 min Cuisine: American

Creamy, buttery mashed potato casserole with tangy sour cream, rich cream cheese, and a hint of garlic—perfect for holiday gatherings or cozy family dinners.

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Ingredients

  • 10 medium potatoes
  • 8 oz sour cream with chives
  • 8 oz cream cheese
  • dash garlic powder
  • 4 Tbsp minced green onions
  • 1 stick butter

Instructions

  1. Peel and cook potatoes until tender.
  2. Drain and mash the potatoes.
  3. Stir in sour cream with chives, cream cheese, garlic powder, minced green onions, and butter until smooth.
  4. Transfer the mixture into a buttered baking dish.
  5. Refrigerate, covered, overnight.
  6. Bake uncovered at 350°F for 1 hour.

Tips & Substitutions

For an even creamier texture, consider using half-and-half or whole milk in place of some of the butter. If you're short on time, you can use pre-mashed potatoes instead of starting from scratch. Additionally, feel free to experiment with different herbs or cheeses to customize the flavor profile. This gourmet mashed potato casserole pairs beautifully with Hot Mushroom Pinwheels.

Serving Suggestions

Serve this delightful casserole as a side dish alongside roasted meats, such as chicken or beef. It also complements vegetarian recipes wonderfully, making it a versatile choice for gatherings. Garnish with additional minced green onions or fresh herbs for an elegant touch.

Storage & Reheating

Store leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, simply cover with foil and warm in a preheated oven at 350°F for about 20-30 minutes, or until heated through. You can also microwave individual portions for quick reheating.

Nutrition & Diet Analysis (per serving)

Each serving of Gourmet Mashed Potato Casserole contains roughly 1588 calories, with 22g protein, 189g carbohydrates, and 83g fat. It is an excellent source of potassium (98% of the Daily Value), vitamin C (83% of the Daily Value), and dietary fiber (61% of the Daily Value), and a good source of calcium. It also contributes 17g of dietary fiber toward your daily target.

1588 kcal 79% DV
Protein Fat Carbs

Macronutrients

Protein 21.9g 44% DV
Total Fat 83.2g 100% DV
Carbs 188.8g 69% DV
Fiber 17.1g 61% DV
Sugar 2.7g 5% DV

Electrolytes

Sodium 196.1mg 9% DV
Potassium 4606.5mg 98% DV
Cholesterol 91mg 30% DV

Vitamins & Minerals

Vitamin A 75.5mcg 8% DV
Vitamin C 74.9mg 83% DV
Vitamin D 0mcg
Calcium 169.1mg 13% DV
Iron 4.7mg 26% DV
Diet fit High-protein High-fiber
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this casserole ahead of time?

Absolutely! This casserole is perfect for preparing in advance. Simply follow the instructions up to the refrigerating step, then bake it the next day. This can save you time on busy occasions while allowing the flavors to meld beautifully.

What can I substitute for cream cheese?

If you're looking for a lighter option, you can use Greek yogurt or ricotta cheese instead of cream cheese. This will still give you a creamy texture while adding a bit of tanginess to the dish.

Is it possible to freeze this casserole?

Yes, you can freeze the uncooked casserole for up to 2 months. Just be sure to cover it tightly with plastic wrap and aluminum foil. When you're ready to bake, thaw it in the refrigerator overnight before cooking it as directed.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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