Cheesy Potatoes With Corn Flakes is a warm and tasty dish that brings together creamy potatoes and a crunchy corn flake topping. It’s comfort food at its best!
I love how the cheese melts beautifully, and that crispy topping makes it extra special. Perfect for sharing at parties or family dinners—just don’t forget to save some for yourself! 😄
Key Ingredients & Substitutions
Frozen Diced Potatoes: These potatoes make prep easy. You can use hash browns or frozen diced potatoes. If you have fresh potatoes, consider peeling and dicing them, but make sure to precook them slightly to avoid a longer bake time.
Sharp Cheddar Cheese: This adds a strong, tangy flavor. If you prefer a milder taste, go for mild cheddar or even mozzarella. Mixing different cheeses can also create a nice flavor blend!
Cream of Mushroom Soup: This gives creaminess, but if you’re avoiding mushrooms, cream of chicken or even a homemade white sauce works well. Vegan options like coconut cream with nutritional yeast can make a tasty substitute.
Sour Cream: Adds richness; Greek yogurt is a great alternative. It’s slightly tangy and will keep the dish creamy just like sour cream.
Corn Flakes: For the topping, corn flakes provide crunch. If gluten-free, try rice cereal or crushed gluten-free crackers as a substitute. I love the extra crunch they bring to the casserole!
How Do I Get the Corn Flakes Topping Extra Crispy?
The corn flakes topping is key in this dish, and achieving that perfect crunch requires a few steps. Here’s how to ensure it turns out golden and crispy:
- Before coating, crush the corn flakes lightly for an even texture that gets more crispy while baking.
- Mix the crushed flakes with melted butter until they are well coated. This will help them brown beautifully.
- Spread the corn flakes evenly on top of the potato mixture to avoid clumping together during baking.
- Keep an eye on the casserole as it bakes. If the topping is browning too quickly, you can tent it with foil towards the end.

Cheesy Potatoes With Corn Flakes
Ingredients You’ll Need:
For the Casserole:
- 6 cups frozen diced potatoes (hash browns or diced)
- 2 cups shredded sharp cheddar cheese
- 1 can (10.5 oz) cream of mushroom soup (or cream of chicken soup)
- 1 cup sour cream
- 1/2 cup diced onions (optional)
For the Topping:
- 1/4 cup butter, melted
- 2 cups corn flakes cereal, crushed
- Salt and pepper to taste
For Garnish (optional):
- Fresh thyme or parsley
How Much Time Will You Need?
This recipe will take about 15 minutes to prepare and 45-55 minutes to bake. Overall, you’re looking at roughly 1 hour to 1 hour and 10 minutes from start to finish, with a delicious, cheesy potato casserole ready to enjoy!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 350°F (175°C). This ensures it’s hot enough to cook everything evenly. While you’re at it, lightly grease a 9×13-inch baking dish to prevent sticking.
2. Mix the Casserole Ingredients:
In a large mixing bowl, combine the frozen diced potatoes, shredded cheddar cheese (if you want, set aside a bit of cheese for later), cream of mushroom soup, sour cream, and the diced onions (if you’re using them). Use a spatula or spoon to mix everything together until well combined.
3. Season the Mixture:
Add salt and pepper to taste, then mix thoroughly to ensure the seasoning is evenly distributed throughout the potato mixture.
4. Assemble the Casserole:
Pour the potato mixture into your prepared baking dish and spread it out evenly. You want every bite to have that cheesy goodness!
5. Prepare the Corn Flake Topping:
In a separate bowl, mix together the crushed corn flakes and melted butter. Stir until all the flakes are coated in butter; this will make them nice and crispy during baking.
6. Add the Topping:
Carefully sprinkle the buttered corn flakes evenly over the top of the potato mixture. If you saved some cheese earlier, feel free to sprinkle it on top for extra cheesiness!
7. Bake the Casserole:
Put the baking dish in the preheated oven and bake for 45-55 minutes. You’ll know it’s done when the potatoes are bubbly, the cheese is melted, and the corn flakes topping is golden brown and crispy.
8. Allow to Rest:
Once baked, remove the casserole from the oven and let it rest for about 5 minutes. This allows it to set a little bit, making it easier to serve.
9. Garnish and Serve:
If desired, sprinkle fresh thyme or parsley on top for a pop of color and flavor. Scoop out servings and enjoy this delightful cheesy potato dish while warm!
This creamy and crunchy cheesy potato casserole with a crispy corn flakes topping is a delicious comfort food side dish perfect for family meals and holiday gatherings.
Can I Use Fresh Potatoes Instead of Frozen?
Yes, you can use fresh potatoes! Just make sure to peel and dice them, then parboil them for about 10 minutes before adding to the casserole to ensure they cook evenly in the oven.
How Can I Make This Recipe Healthier?
You can lighten up the dish by using low-fat cheese and sour cream. You could also replace the cream of mushroom soup with a homemade mixture of sautéed mushrooms and a splash of low-sodium vegetable broth for a fresher option.
Can I Make This Dish in Advance?
Absolutely! You can assemble the casserole a day ahead, cover it tightly with foil, and store it in the refrigerator. When you’re ready to bake, just add a few extra minutes to the cooking time if it’s going in cold from the fridge.
What Should I Do With Leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through for the best texture, or heat individual portions in the microwave. Just be careful not to overcook them!



