This Cheesy Potato Casserole is a warm, comforting dish loaded with creamy potatoes and melted cheese. It’s perfect for family dinners and easy to make!
I can’t resist taking second helpings of this! If you’re like me, you know the cheese just makes everything better. Serve it with a smile—it’s that good!
Key Ingredients & Substitutions
Potatoes: Use starchy potatoes like Russets for a creamy texture or Yukon Gold for a buttery flavor. If you’re low on fresh potatoes, frozen potato slices can be a quick substitute, though they may not hold up as well.
Cheddar Cheese: I love sharp cheddar for its strong flavor. If you want a milder taste, go for medium or mild cheddar. You can replace it with Colby or Monterey Jack cheese if they’re handy.
Milk: Whole milk gives the dish richness, but 2% works just fine. For a lighter option, try unsweetened almond or oat milk, but be mindful of the consistency and flavor adjustments.
Butter & Flour: This combo creates a roux. If you’re dairy-free, consider using coconut oil and a gluten-free flour blend to achieve a similar texture and taste.
How Do I Make a Creamy Cheese Sauce Without Clumps?
Creating a smooth cheese sauce is key to your casserole. Start by melting the butter and whisking in the flour, cooking for about a minute. This forms a roux, which thickens the milk.
- Gradually add the milk, whisking constantly. This helps eliminate lumps.
- Keep stirring until the sauce thickens, about 3-5 minutes, before adding the cheeses and seasonings.
- Ensure everything is melted and combined off the heat to avoid stringy cheese.
Remember, patience is your friend here! If the sauce gets too thick, a splash more milk can help. Enjoy making your casserole creamy without clumps!
How to Make Cheesy Potato Casserole
Ingredients You’ll Need:
For the Casserole:
- 4 cups thinly sliced potatoes (about 4 medium potatoes)
- 2 cups shredded cheddar cheese (divided)
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 2 cups milk (whole or 2%)
- 1/4 cup unsalted butter
- 1/4 cup all-purpose flour
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
- 2 tablespoons chopped fresh parsley (for garnish)
How Much Time Will You Need?
This cheesy potato casserole will take about 15 minutes to prepare and around 1 hour for baking. So, you should set aside about 1 hour and 15 minutes in total to enjoy this delicious dish!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 375°F (190°C). While the oven is heating up, take a moment to lightly grease a 9×13 inch baking dish or casserole dish. This will prevent the casserole from sticking!
2. Prepare the Potatoes:
Next, peel your potatoes, then thinly slice them to about 1/8 inch thick. Rinse the slices in cold water to remove excess starch, then pat them dry with a towel. This will help keep the casserole from getting watery.
3. Make the Cheese Sauce:
In a medium saucepan, melt the butter over medium heat. Once melted, stir in the flour and cook for about 1 minute to create a roux. Then, gradually whisk in the milk, stirring constantly until the sauce thickens and becomes smooth, which should take about 3-5 minutes. Reduce the heat to low, and stir in 1 1/2 cups of cheddar cheese, mozzarella cheese, Parmesan cheese, garlic powder, onion powder, salt, and pepper. Keep stirring until all the cheese is melted and the sauce is nice and smooth. Remove from heat.
4. Layer the Casserole:
Now it’s time to layer everything in the prepared dish! Start by arranging half of the potato slices evenly across the bottom of the dish. Pour half of the cheese sauce over the potatoes. Next, add the remaining potato slices on top and pour the rest of the cheese sauce evenly over these slices. Finally, sprinkle the remaining 1/2 cup of cheddar cheese on top for that perfect gooey finish!
5. Bake the Casserole:
Cover your casserole dish with aluminum foil and pop it in the preheated oven. Bake for 45 minutes. After 45 minutes, carefully remove the foil and continue baking for an additional 15-20 minutes. You’ll know it’s done when the cheese is golden, bubbly, and the potatoes are nice and tender.
6. Serve and Enjoy:
Once baked, take the casserole out of the oven and let it rest for about 10 minutes to firm up. Before serving, garnish with chopped fresh parsley for a pop of color and freshness. Enjoy your delicious, creamy, cheesy potato casserole with a crispy golden top!
Can I Use Different Types of Cheese?
Absolutely! While cheddar and mozzarella are the traditional choices, you can mix and match cheeses based on your preference. Try gouda, fontina, or even a little blue cheese for a unique flavor twist!
What’s a Good Substitute for Potatoes?
If you’re looking for a lower-carb option, you can use cauliflower florets or sweet potatoes instead. Just adjust the cooking time as needed, since sweet potatoes may take a bit longer to become tender.
Can I Make This Casserole Ahead of Time?
Yes! You can prepare the casserole up to the baking point, cover it tightly, and refrigerate for up to 24 hours. Just add an extra 10-15 minutes to the baking time if you’re starting from cold.
What’s the Best Way to Store Leftovers?
Store any leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave, adding a splash of milk if it seems dry. Enjoy those cheesy bites again!
