Au Gratin Potato Casserole(Texas-Style)

Prep: 15 min Cook: 45 min Serves: 20 Cuisine: American

A rich and creamy potato casserole with a crispy cornflake topping, perfect for family dinners or potlucks. The combination of melted butter, sharp Cheddar, and savory hash browns creates a comforting dish with bold flavors and a satisfying texture, ideal for those who love hearty, cheesy baked casseroles.

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Ingredients

  • 1 cup melted butter
  • 1 teaspoon salt
  • 1/2 teaspoon pepper
  • 1/2 cup chopped onion
  • 1 can cream of chicken soup
  • 1 pint sour cream
  • 2 cups grated sharp Cheddar cheese
  • 1 (2 lb.) bag frozen Southern hash browns, thawed
  • 1/2 stick butter

Instructions

  1. Mix 1 cup melted butter, salt, and pepper; add chopped onion and sauté.
  2. Add cream of chicken soup, sour cream, grated Cheddar cheese, and thawed hash browns; mix well.
  3. Place the mixture in a large greased 9 x 13-inch casserole dish.
  4. Melt 1/2 stick of butter and mix with cornflakes; set aside.
  5. Sprinkle the cornflake mixture over the casserole.
  6. Bake at 350°F for 45 minutes until golden and bubbly.

Tips & Substitutions

For extra flavor, consider adding minced garlic or diced bell peppers when sautéing the onions. You can substitute the sharp Cheddar cheese with Gruyère for a different taste. If you prefer a lighter version, use low-fat sour cream and a reduced-fat cream of chicken soup. Adding a splash of hot sauce can elevate the dish, reminiscent of Red Hot Wings.

Serving Suggestions

Serve the Au Gratin Potato Casserole alongside a crisp green salad for a balanced meal. It pairs wonderfully with roasted meats or can be served as a hearty side dish for gatherings. For a comforting dinner, consider serving it with Oven-Fried Cinnamon Chicken, creating a delicious contrast of flavors.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in a preheated oven at 350°F for about 20-25 minutes or until heated through. Cover with foil if the top is browning too quickly. This dish can also be frozen for up to 2 months.

Nutrition & Diet Analysis (per serving)

Each serving of Au Gratin Potato Casserole(Texas-Style) contains roughly 499 calories, with 3g protein, 8g carbohydrates, and 51g fat. Note that it is relatively high in sodium, at 547mg per serving (24% of the Daily Value).

499 kcal 25% DV
Protein Fat Carbs

Macronutrients

Protein 2.5g 5% DV
Total Fat 50.9g 65% DV
Carbs 7.9g 3% DV
Fiber 0.4g 2% DV
Sugar 1.1g 2% DV

Electrolytes

Sodium 546.6mg 24% DV
Potassium 35.8mg 1% DV
Cholesterol 143mg 48% DV

Vitamins & Minerals

Vitamin A 25.6mcg 3% DV
Vitamin C 0.4mg
Vitamin D 0mcg
Calcium 51mg 4% DV
Iron 0.4mg 2% DV
Diet fit Keto-friendly
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 casserole ahead of time?

Yes, you can prepare the casserole in advance. Assemble it up to the baking step, cover tightly, and refrigerate for up to 24 hours. When ready to bake, add an additional 10-15 minutes to the cooking time if baking straight from the fridge.

Can I use fresh potatoes instead of frozen hash browns?

Absolutely! If using fresh potatoes, thinly slice them and parboil for about 5 minutes before mixing them in. This will help them cook evenly and achieve the desired texture in the casserole.

What can I use instead of cream of chicken soup?

You can substitute cream of chicken soup with homemade white sauce or cream of mushroom soup for a different flavor. If you need a vegetarian option, use a vegetable-based cream soup to keep the dish delicious and satisfying.

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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