World'S Best Potato Casserole

Prep: 10 min Cook: 45 min Cuisine: American

A comforting and cheesy potato casserole featuring crispy Southern-style hash browns, creamy sour cream, and melted Cheddar cheese. Perfect for potlucks, family dinners, or holiday gatherings, its rich flavors and easy preparation make it a crowd-pleaser for all ages.

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Ingredients

  • 2 lb. frozen Southern style hash brown potatoes
  • 2 c. sour cream
  • 2 c. grated Cheddar cheese
  • 1 can cream of mushroom soup
  • 1 medium onion, diced

Instructions

  1. Mix all ingredients in a large bowl.
  2. Transfer the mixture to a greased baking dish.
  3. Bake in a 350°F (175°C) oven for about 45 minutes, or longer if the potatoes are not defrosted first.

Tips & Substitutions

For a creamier texture, consider using full-fat sour cream and a mix of cheeses, such as Monterey Jack and Gouda, for added flavor. If you prefer a bit of crunch, top the casserole with crushed cornflakes or breadcrumbs before baking. If you want to lighten it up, use Greek yogurt instead of sour cream. Make sure to thaw the potatoes completely before mixing for even cooking.

Serving Suggestions

This hearty casserole is perfect as a side dish for grilled meats or roasted chicken and pairs beautifully with a fresh salad. For a complete meal, serve it alongside steamed vegetables or a creamy soup. It can also be enjoyed as a main dish for brunch, accompanied by scrambled eggs or a fruit salad.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to four days. To reheat, cover the casserole with foil and warm it in a preheated oven at 350°F (175°C) for about 20-30 minutes, or until heated through. You can also microwave individual portions, but be sure to cover them to retain moisture.

Nutrition & Diet Analysis (per serving)

Each serving of World'S Best Potato Casserole contains roughly 991 calories, with 40g protein, 79g carbohydrates, and 59g fat. It is an excellent source of calcium (91% of the Daily Value), protein (80% of the Daily Value), and vitamin A (64% of the Daily Value), and a good source of potassium. Note that it is relatively high in sodium, at 1497mg per serving (65% of the Daily Value).

991 kcal 50% DV
Protein Fat Carbs

Macronutrients

Protein 39.8g 80% DV
Total Fat 58.7g 75% DV
Carbs 78.7g 29% DV
Fiber 2.4g 9% DV
Sugar 8.6g 17% DV

Electrolytes

Sodium 1497.4mg 65% DV
Potassium 556mg 12% DV
Cholesterol 140.4mg 47% DV

Vitamins & Minerals

Vitamin A 578.4mcg 64% DV
Vitamin C 2.1mg 2% DV
Vitamin D 0.7mcg 4% DV
Calcium 1189.3mg 91% DV
Iron 1.7mg 9% DV
Diet fit High-protein
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 potato casserole ahead of time?

Yes, you can prepare the casserole a day in advance. Assemble all ingredients in the baking dish, cover tightly, and refrigerate. When ready to bake, allow it to sit at room temperature for about 30 minutes before putting it in the oven to ensure even cooking.

Can I use fresh potatoes instead of frozen hash browns?

Absolutely! If using fresh potatoes, peel and shred them, then soak them in cold water to remove excess starch. Drain and dry them before mixing with the other ingredients. Keep in mind that fresh potatoes may require a longer baking time compared to frozen hash browns.

Is this casserole suitable for vegetarians?

Yes, this potato casserole is a great option for vegetarian recipes. Just ensure that the cream of mushroom soup used is meat-free. You can also add vegetables like bell peppers or spinach for added nutrition and flavor.

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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