As a food blogger I perfected a Cheesy Hash Brown Casserole Recipe with sour cream, onions, sharp cheddar and cream of chicken soup that hides one clever step to make enough for a crowd.

I love a dish that gets people to argue over the last spoonful. My Cheesy Hashbrown Potato Casserole started as a lazy weekend experiment and now shows up at potlucks.
It uses frozen shredded hashbrowns and lots of shredded sharp cheddar cheese so every bite pulls and melts. I won’t say it’s simple, but it’s the sort of Copycat Hash Brown Casserole that makes you rethink boxed sides.
If you want comfort without fuss, this Hash Brown Potato Casserole has that salty, melty thing going on that makes you want to serve it again next weekend.
Ingredients

- Frozen shredded potatoes: starchy carbs, filling, low fiber, great for crispy texture
- Condensed cream of chicken soup: adds savory cream, sodium spikes, little real protein or veggies
- Sour cream: tangy dairy, adds creaminess, some fat and calcium, makes casserole richer
- Butter: brings fat and flavor, adds richness, boosts calories and tenderness
- Sharp cheddar cheese: protein and calcium, melty flavor, salty and savory punch
- Eggs: bind the mix, add protein and moisture, simple and handy
- Crushed cornflakes: top adds crunch, mostly carbs, a bit of salt
- Yellow onion: sweet savory aroma when cooked, tiny fiber and antioxidants
Ingredient Quantities
- 1 (30 ounce) bag frozen shredded hashbrowns
- 1 (10.5 ounce) can condensed cream of chicken soup
- 1 cup sour cream
- 1/2 cup unsalted butter
- 1 small yellow onion
- 2 cups shredded sharp cheddar cheese
- 2 large eggs
- 1 teaspoon kosher salt
- 1/2 teaspoon black pepper
- 1 1/2 cups crushed cornflakes
- 2 tablespoons butter
How to Make this
1. Preheat oven to 350 F and grease a 9×13 baking dish with a little butter or nonstick spray.
2. Thaw the frozen shredded hashbrowns enough so theyre pliable, then squeeze out excess moisture with a clean dish towel or paper towels.
3. Finely dice the small yellow onion. Melt the 1/2 cup unsalted butter in a skillet over medium heat and cook the onion until soft and translucent, about 4 minutes; let it cool a minute.
4. In a large bowl combine the drained hashbrowns, the can of condensed cream of chicken soup, 1 cup sour cream, the two large eggs (beat them first), the cooked onion with butter, 1 1/2 cups of the shredded sharp cheddar (reserve the rest), 1 teaspoon kosher salt and 1/2 teaspoon black pepper. Stir until evenly mixed.
5. Taste a tiny bit (optional) and adjust salt or pepper, then spread the potato mixture evenly into the prepared baking dish.
6. Sprinkle the remaining 1/2 cup shredded cheddar over the top of the casserole.
7. Put the 1 1/2 cups crushed cornflakes into a small bowl, melt the 2 tablespoons butter and pour over the cornflakes, toss until coated and crumbly.
8. Evenly sprinkle the buttered cornflake crumbs on top of the cheese layer.
9. Bake in the preheated oven for 45 to 50 minutes, until bubbly and the top is golden. If you want it extra brown, put it under the broiler for 1 to 2 minutes but watch it close so it doesnt burn.
10. Let the casserole rest about 10 minutes before serving so it sets up. Tip: you can make it a day ahead, keep covered in the fridge and add 5 to 10 minutes to the bake time if chilled.
Equipment Needed
1. Oven set to 350 F, obviously needed to bake it.
2. 9×13 baking dish, greased so it wont stick.
3. Large mixing bowl to combine everything.
4. Medium skillet for melting butter and cooking the onion.
5. Measuring cups and spoons for the soup, sour cream, salt etc.
6. Clean dish towel or paper towels to squeeze out the hashbrowns.
7. Small bowl (for the crushed cornflakes) and a spoon to toss them.
8. Spatula or wooden spoon to mix and spread the casserole.
9. Fork or small whisk to beat the eggs.
10. Cheese grater, optional if your cheddar isnt already shredded.
FAQ
Cheesy Hashbrown Potato Casserole Recipe Substitutions and Variations
- Frozen shredded hashbrowns: you can use 4 cups grated fresh russet potatoes squeezed dry, or a 30 ounce bag frozen diced potatoes thawed and roughly mashed, or try shredded sweet potatoes for a slightly sweet twist
- Condensed cream of chicken soup: swap with condensed cream of mushroom or cream of celery, or make a quick homemade version by whisking 1 cup milk with 2 tablespoons flour and 1/2 cup chicken broth until thickened
- Sour cream: plain Greek yogurt works cup for cup, it’s tangy and thick; or crème fraiche for a richer flavor; or 8 ounces softened cream cheese thinned with 2 tablespoons milk
- Crushed cornflakes topping: use 1 1/2 cups panko breadcrumbs toasted, or 1 1/2 cups crushed Ritz or buttery crackers, or crushed potato chips for extra crunch and salt
Pro Tips
– Dry the hashbrowns like your life depends on it. Use a clean dish towel and squeeze hard, or press between paper towels. Too much water = a soggy middle, and no one wants that. If the spuds still feel icy, add 5 to 10 extra minutes to the bake time.
– Don’t skip browning the onion in the butter. Let it get a little color so it’s sweeter and less watery, then cool it before adding to the mix or it can thin out the custard. Little bits of caramelized onion really lift the whole dish.
– Make the cornflake topping pop: add a pinch of salt and a little smoked paprika or garlic powder to the melted butter before tossing. Press the crumbs down lightly so they stick, and if the top is getting too dark, tent the pan with foil for the first 30 minutes then uncover to crisp.
– Prep ahead for easier mornings. Assemble the casserole and chill overnight, covered. Bake straight from the fridge but give it 10 extra minutes and let it rest 10 minutes after baking so it sets up. Saves time and the flavors meld better.

Cheesy Hashbrown Potato Casserole Recipe
As a food blogger I perfected a Cheesy Hash Brown Casserole Recipe with sour cream, onions, sharp cheddar and cream of chicken soup that hides one clever step to make enough for a crowd.
8
servings
498
kcal
Equipment: 1. Oven set to 350 F, obviously needed to bake it.
2. 9×13 baking dish, greased so it wont stick.
3. Large mixing bowl to combine everything.
4. Medium skillet for melting butter and cooking the onion.
5. Measuring cups and spoons for the soup, sour cream, salt etc.
6. Clean dish towel or paper towels to squeeze out the hashbrowns.
7. Small bowl (for the crushed cornflakes) and a spoon to toss them.
8. Spatula or wooden spoon to mix and spread the casserole.
9. Fork or small whisk to beat the eggs.
10. Cheese grater, optional if your cheddar isnt already shredded.
Ingredients
-
1 (30 ounce) bag frozen shredded hashbrowns
-
1 (10.5 ounce) can condensed cream of chicken soup
-
1 cup sour cream
-
1/2 cup unsalted butter
-
1 small yellow onion
-
2 cups shredded sharp cheddar cheese
-
2 large eggs
-
1 teaspoon kosher salt
-
1/2 teaspoon black pepper
-
1 1/2 cups crushed cornflakes
-
2 tablespoons butter
Directions
- Preheat oven to 350 F and grease a 9×13 baking dish with a little butter or nonstick spray.
- Thaw the frozen shredded hashbrowns enough so theyre pliable, then squeeze out excess moisture with a clean dish towel or paper towels.
- Finely dice the small yellow onion. Melt the 1/2 cup unsalted butter in a skillet over medium heat and cook the onion until soft and translucent, about 4 minutes; let it cool a minute.
- In a large bowl combine the drained hashbrowns, the can of condensed cream of chicken soup, 1 cup sour cream, the two large eggs (beat them first), the cooked onion with butter, 1 1/2 cups of the shredded sharp cheddar (reserve the rest), 1 teaspoon kosher salt and 1/2 teaspoon black pepper. Stir until evenly mixed.
- Taste a tiny bit (optional) and adjust salt or pepper, then spread the potato mixture evenly into the prepared baking dish.
- Sprinkle the remaining 1/2 cup shredded cheddar over the top of the casserole.
- Put the 1 1/2 cups crushed cornflakes into a small bowl, melt the 2 tablespoons butter and pour over the cornflakes, toss until coated and crumbly.
- Evenly sprinkle the buttered cornflake crumbs on top of the cheese layer.
- Bake in the preheated oven for 45 to 50 minutes, until bubbly and the top is golden. If you want it extra brown, put it under the broiler for 1 to 2 minutes but watch it close so it doesnt burn.
- Let the casserole rest about 10 minutes before serving so it sets up. Tip: you can make it a day ahead, keep covered in the fridge and add 5 to 10 minutes to the bake time if chilled.
Notes
- Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.
Nutrition Facts
- Serving Size: 245g
- Total number of serves: 8
- Calories: 498kcal
- Fat: 33.7g
- Saturated Fat: 15g
- Trans Fat: 0.19g
- Polyunsaturated: 1.9g
- Monounsaturated: 11.3g
- Cholesterol: 127mg
- Sodium: 576.5mg
- Potassium: 551mg
- Carbohydrates: 28.6g
- Fiber: 2.7g
- Sugar: 5.8g
- Protein: 13.2g
- Vitamin A: 625IU
- Vitamin C: 22mg
- Calcium: 251mg
- Iron: 1.9mg











