Frozen Hash Brown Casserole With White Sauce

Hash Brown Casserole in a White-and-Green Casserole Dish on a wooden rack

Diana Rattray

  • Total: 85 mins
  • Prep: 15 mins
  • Cook: 70 mins
  • Yield: 4 Servings
Nutritional Guidelines (per serving)
785 Calories
53g Fat
58g Carbs
22g Protein
See Full Nutritional Guidelines Hide Full Nutritional Guidelines
Nutrition Facts
Servings: 4 Servings
Amount per serving
Calories 785
% Daily Value*
Total Fat 53g 67%
Saturated Fat 24g 118%
Cholesterol 103mg 34%
Sodium 1073mg 47%
Total Carbohydrate 58g 21%
Dietary Fiber 6g 21%
Protein 22g
Calcium 561mg 43%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Your family will love this flavorful hash brown casserole. The frozen hash brown potatoes are combined with a homemade cheese sauce (no soup) and then the casserole is topped with soft buttered bread crumbs.

This is an excellent potato casserole to serve with a big breakfast or brunch, and it makes a tasty dinner side dish as well. 


  • 5 tablespoons butter (divided)
  • 4 to 6 green onions
  • 4 tablespoons flour
  • 3/4 cup chicken broth
  • 3/4 cup whole milk or half and half
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper (freshly ground)
  • 1 pound hash brown potatoes, frozen Southern-style (thawed*)
  • 1 cup sharp cheddar cheese (shredded)
  • 1 cup bread crumbs

Steps to Make It

  1. Butter a 1 to 1 1/2-quart casserole. Heat oven to 350 F.

  2. In a saucepan, melt 4 tablespoons of the butter; add green onions and cook for 1 minute over medium-low heat.

  3. Add flour and stir to blend well. Cook, stirring, for 2 minutes. Gradually stir in the chicken broth and milk.

  4. Cook, stirring constantly, until thickened and bubbly. Stir in salt, pepper, potatoes, and cheese. Spoon into the prepared baking dish.

  5. Put bread crumbs in a bowl. Melt remaining 1 tablespoon of butter; drizzle over bread crumbs and toss to blend.

  6. Sprinkle the buttered bread crumbs over the casserole.

  7. Bake for 45 to 55 minutes, or until hot and bubbly and topping is nicely browned.


  • Put frozen hash browns in a shallow container and thaw them in the refrigerator overnight. To thaw quickly, microwave them, stirring frequently until the potatoes are thawed. Pat dry with paper towels before using.
  • If you can't find the diced "Southern-Style" hash browns, shredded can be substituted.