Au Gratin Casserole

Prep: 15 min Cook: 60 min Serves: 8 Cuisine: American

A creamy, cheesy potato casserole with green onions, perfect for family dinners or potlucks, offering comforting flavors and a crispy topping after melting butter over the top.

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Ingredients

  • 1 large can cream of chicken soup
  • 2 lb. bag Ore-Ida hash browns, thawed
  • 1 large (16 oz.) box sour cream
  • 1 small bunch green onions
  • 2 cups mild Cheddar cheese, shredded

Instructions

  1. Combine the cream of chicken soup, thawed hash browns, sour cream, chopped green onions, and shredded Cheddar cheese in a bowl and mix well.
  2. Pour the mixture into a greased 9 x 13-inch baking pan.
  3. Bake in a preheated oven at 350°F (175°C) for approximately 1 hour.
  4. Remove from the oven and melt the oleo (butter), then pour it over the casserole.
  5. Let the casserole soak for a few minutes before serving.

Tips & Substitutions

For a creamier texture, consider adding a cup of cream cheese or substituting Greek yogurt for the sour cream. You can also use frozen hash browns for convenience, but make sure they're thawed properly. Adding a pinch of garlic powder or fresh herbs can elevate the flavor profile. To enhance the dish's richness, try using sharp Cheddar cheese instead of mild.

Serving Suggestions

This Au Gratin Casserole is perfect as a side dish for any main course, particularly pairs beautifully with Chicken Breasts With Orange Sauce. Serve it alongside a fresh green salad or steamed vegetables for a complete meal. For a heartier option, it can also be enjoyed as a main dish with a side of crusty bread.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to three days. To reheat, place in a preheated oven at 350°F (175°C) for about 20-30 minutes until warmed through. Alternatively, you can microwave individual portions for quicker heating, ensuring they heat evenly.

Nutrition & Diet Analysis (per serving)

Each serving of Au Gratin Casserole contains roughly 341 calories, with 18g protein, 22g carbohydrates, and 21g fat. It is an excellent source of calcium (45% of the Daily Value), protein (36% of the Daily Value), and vitamin A (33% of the Daily Value). Note that it is relatively high in sodium, at 641mg per serving (28% of the Daily Value).

341 kcal 17% DV
Protein Fat Carbs

Macronutrients

Protein 17.8g 36% DV
Total Fat 20.7g 27% DV
Carbs 21.5g 8% DV
Fiber 0.3g 1% DV
Sugar 1.1g 2% DV

Electrolytes

Sodium 641.4mg 28% DV
Potassium 232.5mg 5% DV
Cholesterol 70.6mg 24% DV

Vitamins & Minerals

Vitamin A 296.6mcg 33% DV
Vitamin C 2.4mg 3% DV
Vitamin D 0.4mcg 2% DV
Calcium 578.5mg 45% DV
Iron 0.4mg 2% DV
Diet fit Under 400 cal
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 a day in advance. Assemble it completely, cover it tightly with plastic wrap, and refrigerate. When ready to bake, remove it from the fridge and bake it as directed, adding about 10-15 minutes to the cooking time.

What can I substitute for the cream of chicken soup?

You can substitute with homemade cream of chicken soup or use a vegetable or mushroom-based soup for a vegetarian version. Alternatively, combine equal parts of chicken broth and heavy cream with some seasonings to create a similar consistency.

Can I add protein to this casserole?

Absolutely! Shredded rotisserie chicken, diced ham, or cooked ground beef can be great additions. Just mix the protein into the casserole before baking to create a more filling dish that can stand alone as a meal.

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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