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Cheesy Hashbrown Casserole Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 15 reviews
  • Author: Sarah
  • Prep Time: 10 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 5 minutes
  • Yield: 12 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Description

A comforting and cheesy hashbrown casserole featuring crispy cornflake topping, tender shredded potatoes in a creamy cheese sauce, and savory seasonings baked to golden perfection.


Ingredients

Scale

Main Ingredients

  • 2 pounds frozen hashbrown potatoes
  • 1 small onion diced, about 1 cup
  • 5 tablespoons unsalted butter
  • 4 tablespoons all-purpose flour
  • 2 cups milk
  • 2 cups freshly grated cheddar cheese
  • 2 cups sour cream (can also use plain Greek yogurt)
  • 1 teaspoon salt
  • ½ teaspoon black or white pepper
  • ½ teaspoon garlic powder
  • 1 teaspoon chicken bouillon (recommended: Better than Bouillon base)

Topping

  • 1-2 cups corn flakes
  • ½ cup shredded cheddar cheese


Instructions

  1. Preheat Oven: Preheat oven to 400 degrees Fahrenheit. Spray a large 13×8-inch casserole dish with nonstick cooking spray to prevent sticking.
  2. Sauté Onion: Melt 1 tablespoon butter in a medium saucepan over medium heat. Add diced onion and sauté until translucent, about 4-5 minutes.
  3. Make Roux: Add the remaining 4 tablespoons of butter to the saucepan. Once melted, whisk in the flour until fully combined forming a roux.
  4. Prepare Sauce: Gradually add the milk to the roux mixture while stirring frequently. Cook over medium heat, stirring often, until the sauce thickens, about 5-6 minutes.
  5. Season Sauce: Once thickened, stir in chicken bouillon and mix well. Add salt, pepper, and garlic powder, then turn off the heat and let the sauce cool for 4-5 minutes.
  6. Mix Potatoes: While sauce cools, place frozen shredded potatoes in a large bowl. Stir in sour cream until evenly combined.
  7. Combine Cheese and Sauce: Stir 2 cups shredded cheddar cheese into the warm sauce until fully melted and smooth. Pour this cheese sauce over the potato mixture and stir well to coat evenly.
  8. Assemble Casserole: Transfer the potato mixture into the prepared casserole dish and spread it out evenly.
  9. Add Topping: Sprinkle 1-2 cups corn flakes evenly over the top, then add ½ cup shredded cheddar cheese on top of the corn flakes.
  10. Bake: Bake uncovered in the preheated oven for 45 minutes, or until the casserole is golden brown and bubbling.
  11. Rest Before Serving: Remove from oven and let sit for 5 minutes before serving to allow it to set.

Notes

  • For a healthier twist, substitute sour cream with plain Greek yogurt.
  • Corn flakes provide a crunchy topping, but panko breadcrumbs or crushed crackers can be used as alternatives.
  • If you prefer a spicier flavor, add a pinch of cayenne pepper or smoked paprika.
  • Use chicken bouillon carefully if dietary restrictions apply; vegetable bouillon can be substituted for a vegetarian option.
  • Make sure the sauce is cooled slightly before mixing with potatoes to avoid curdling.

Nutrition

  • Serving Size: 1 serving
  • Calories: 320 kcal
  • Sugar: 3 g
  • Sodium: 450 mg
  • Fat: 20 g
  • Saturated Fat: 12 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 25 g
  • Fiber: 2 g
  • Protein: 10 g
  • Cholesterol: 45 mg