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–+ servings
Hash Brown Potato Casserole
This creamy, cheesy Hash Brown Potato Casserole is a beloved comfort dish that's perfect for gatherings, holidays, or hearty family dinners. Made with frozen hash browns, melted margarine, cream of mushroom soup, sour cream, shredded cheddar cheese, and sautéed onions, it bakes into a golden, bubbling side with irresistible flavor and texture. A classic of Midwestern potlucks and Southern tables alike, it’s the kind of recipe people request again and again. Whether served alongside baked ham or as part of a brunch spread, it’s always a hit.
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Prep Time 15 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 45 minutes
Course Side Dish
Cuisine American
Servings 12
Calories 310 kcal

Ingredients
  

  • 1 lb frozen hash brown potatoes
  • 1 stick margarine (melted (or substitute with butter))
  • 10.5 oz cream of mushroom soup (1 can)
  • 1 lb cheddar cheese (shredded)
  • 1 pint sour cream
  • 2 tbsp onion (finely chopped, sautéed)

Instructions
 

Step 1: Prepare Mixture

  • Sauté finely chopped onions in a small skillet until soft.
  • In a large bowl, mix melted margarine, soup, sour cream, cheese, and sautéed onions.

Step 2: Combine Ingredients

  • Break up the frozen hash browns and stir them into the mixture until evenly combined.

Step 3: Transfer to Pan

  • Spoon mixture into a long loaf pan or 9x13-inch casserole dish. Cover with foil.

Step 4: Bake

  • Bake covered at 400°F for 1 hour and 15 minutes.
  • Uncover and bake an additional 15 minutes until golden and bubbling.

Tips

  • Add diced ham, bacon, or sausage for a heartier casserole.
  • Substitute cream of chicken soup for a lighter mushroom flavor.
  • Use sharp cheddar for a stronger cheese profile.
  • Add green chiles, paprika, or black pepper for extra flavor.
  • Mix in ½ cup crushed cornflakes or breadcrumbs on top for a crunchy finish.
  • Replace margarine with butter for richer taste.
  • Stir in sautéed bell peppers for color and sweetness.
  • Use reduced-fat sour cream to slightly lower calories.
  • Make it ahead, the casserole holds well overnight before baking.
  • Serve with eggs and breakfast sausage as a brunch side dish.

Nutrition

Calories: 310kcalCarbohydrates: 18gProtein: 8gFat: 24gSaturated Fat: 13gPolyunsaturated Fat: 2gMonounsaturated Fat: 6gTrans Fat: 0.5gCholesterol: 55mgSodium: 470mgPotassium: 330mgFiber: 1gSugar: 2gVitamin A: 520IUVitamin C: 4mgCalcium: 210mgIron: 0.7mg
Keyword casserole, comfort food, creamy potatoes, family favorites, potluck dish, retro recipes, vintage recipes
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