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Creamy Garlic Parmesan Potatoes – Easy Cheesy Baked Potato Casserole
These Creamy Garlic Parmesan Potatoes are the ultimate comfort food side dish. Tender potato slices are covered in a rich homemade garlic cream sauce, seasoned with aromatic herbs, and baked until beautifully golden and bubbling.
Inspired by the creamy potato casserole shown in the photo, this recipe combines fresh potatoes, garlic, butter, cream, and cheese to create a deliciously satisfying dish that's perfect for family dinners, holidays, and special occasions.
Whether you're serving roasted chicken, grilled beef, or a simple vegetable dinner, these easy creamy baked potatoes make an irresistible addition to the table.
Why You'll Love This Recipe
- Rich, creamy garlic Parmesan sauce.
- Tender potatoes with a golden cheesy topping.
- Simple ingredients and easy preparation.
- Perfect for holidays and family gatherings.
- Delicious alongside chicken, beef, or vegetables.
- Easy to prepare ahead of time.
Recipe Information
- Prep Time: 20 minutes
- Cook Time: 55–65 minutes
- Total Time: Approximately 1 hour 25 minutes
- Servings: 6
- Course: Side Dish
- Cuisine: American-Inspired
- Difficulty: Easy
Ingredients for Creamy Garlic Parmesan Potatoes
For the Potatoes
- 2 pounds (900 g) Yukon Gold potatoes
- 1 tablespoon olive oil
- ½ teaspoon salt
- ¼ teaspoon black pepper
For the Creamy Garlic Sauce
- 3 tablespoons unsalted butter
- 1 small onion, finely diced
- 4 garlic cloves, minced
- 2 tablespoons all-purpose flour
- 1 cup heavy cream
- 1 cup whole milk
- ½ cup vegetable or chicken broth
- ¾ cup freshly grated Parmesan-style cheese made with vegetarian or microbial rennet
- ½ teaspoon dried thyme
- ½ teaspoon Italian seasoning
- ½ teaspoon salt, or to taste
- ¼ teaspoon black pepper
- 2 tablespoons fresh parsley, chopped
For the Cheesy Topping
- ½ cup shredded mozzarella cheese
- ¼ cup grated Parmesan-style cheese
- 1 tablespoon fresh parsley, optional
Recipe note: The photograph shows sliced potatoes being covered with a creamy herb sauce containing small golden pieces. This original recipe uses sautéed onion and garlic to create a similar sauce. The exact ingredients in the photograph cannot be confirmed.
How to Make Creamy Garlic Parmesan Potatoes
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Lightly grease a 9×13-inch baking dish with olive oil or butter.
Step 2: Prepare the Potatoes
Wash the potatoes thoroughly. Peel them if desired, or leave the skins on for a more rustic texture.
Cut the potatoes into even slices approximately ¼ inch thick.
Place them in a large bowl and season with salt, black pepper, and olive oil.
Arrange the slices evenly in the prepared baking dish.
Step 3: Sauté the Onion
Melt the butter in a medium saucepan over medium heat.
Add the finely diced onion and cook for approximately 4–5 minutes, stirring occasionally, until softened and lightly golden.
Step 4: Add the Garlic
Add the minced garlic to the saucepan.
Cook for approximately 30–60 seconds, stirring constantly until fragrant.
Avoid browning the garlic too much because it can develop a bitter flavor.
Step 5: Make the Cream Sauce
Sprinkle the flour over the butter, onion, and garlic mixture.
Stir continuously for approximately one minute to cook the flour.
Gradually pour in the milk, heavy cream, and broth while whisking to prevent lumps.
Continue stirring until the mixture becomes smooth.
Step 6: Add Cheese and Seasonings
Reduce the heat to low.
Stir in the Parmesan-style cheese, thyme, Italian seasoning, salt, and black pepper.
Cook gently for 2–3 minutes until the sauce thickens slightly.
Remove from the heat and stir in the chopped parsley.
Step 7: Pour the Sauce Over the Potatoes
Slowly pour the creamy garlic sauce over the sliced potatoes.
Use a spoon or spatula to distribute the sauce evenly, making sure it reaches between the potato slices.
The potatoes should be generously coated but not completely submerged.