Potato Casserole Supreme

Take your comfort food game to a whole new level with this irresistible Potato Casserole Supreme! Layered with tender, thinly sliced russet potatoes and bathed in a velvety, three-cheese sauce made with sharp cheddar, creamy mozzarella, and nutty Parmesan, this dish is pure indulgence. A golden, crunchy breadcrumb topping adds the perfect textural contrast, while a hint of garlic and onion powder enhances every bite. Ideal for family dinners, potlucks, or holiday feasts, this cheesy casserole is easy to prepare, wonderfully creamy, and packed with rich, savory flavors. Best served warm, with a sprinkle of fresh parsley for a pop of color. Perfect for satisfying your comfort food cravings, it’s a dish family and friends will request over and over again!

Nutriscore Rating: 61/100

Prep Time:30 mins

Cook Time:60 mins

Total Time:90 mins

Servings: 8

Ingredients

• 6 medium-sized Russet potatoes
• 4 tablespoons Unsalted butter
• 3 tablespoons All-purpose flour
• 2.5 cups Whole milk
• 1 cup Sour cream
• 2 cups Shredded sharp cheddar cheese
• 1 cup Shredded mozzarella cheese
• 0.5 cup Parmesan cheese, grated
• 1 teaspoon Garlic powder
• 1 teaspoon Onion powder
• 1 teaspoon Salt
• 0.5 teaspoon Ground black pepper
• 1 cup Breadcrumbs
• 2 tablespoons Olive oil or melted butter
• 2 tablespoons Fresh parsley, chopped (optional)

Directions

Step 1

Preheat the oven to 375°F (190°C) and grease a 9x13-inch baking dish with butter or non-stick spray.

Step 2

Peel and slice the russet potatoes into thin, even rounds, about 1/8-inch thick. Set them aside in a bowl of cold water to prevent browning.

Step 3

In a medium saucepan over medium heat, melt 4 tablespoons of butter. Once melted, whisk in the flour and cook for about 1 minute to make a roux.

Step 4

Gradually whisk in the whole milk, ensuring no lumps form. Continue cooking and stirring until the sauce thickens, about 5 minutes.

Step 5

Remove the saucepan from heat and stir in sour cream, 1 cup of cheddar cheese, mozzarella cheese, Parmesan cheese, garlic powder, onion powder, salt, and pepper. Stir until smooth and set aside.

Step 6

Drain the potatoes and pat them dry. Layer half of the potato slices evenly in the prepared baking dish.

Step 7

Pour half of the cheese sauce over the potato layer, spreading it evenly. Add the remaining potato slices on top and finish with the remaining cheese sauce.

Step 8

In a small bowl, mix the breadcrumbs with olive oil or melted butter until evenly coated. Sprinkle the breadcrumbs over the top of the casserole, covering the cheese sauce completely.

Step 9

Cover the baking dish with aluminum foil and bake in the preheated oven for 40 minutes.

Step 10

Remove the foil and bake uncovered for an additional 20 minutes, or until the potatoes are tender and the topping is golden and crispy.

Step 11

Let the casserole rest for 10 minutes before serving. Garnish with fresh parsley, if desired. Serve warm and enjoy!

Nutrition Facts

Serving size	(2483.3g)

Amount per serving	% Daily Value*
Calories	4414.5

Total Fat 255.2g	0%
Saturated Fat 145.4g	0%
Polyunsaturated Fat 0.7g
Cholesterol 674.7mg	0%
Sodium 7494.3mg	0%
Total Carbohydrate 388.6g	0%
Dietary Fiber 23.4g	0%
Total Sugars 64.3g
Protein 177.1g	0%

Vitamin D 268.4IU	0%
Calcium 4164.6mg	0%
Iron 18.8mg	0%
Potassium 6853.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 50.4%

Protein: 15.5%

Carbs: 34.1%