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4.4 from 84 votes

Three Cheese Scalloped Potatoes

These scalloped potatoes are EXTRA cheesy thanks to three cheeses used as well as super rich and CREAMY!! They're a perfect HOLIDAY SIDE DISH as well as family friendly weeknight COMFORT FOOD!

Prep Time
20 mins
Cook Time
1 hr 20 mins
Total Time
1 hr 50 mins
Servings: 8
Calories: 649 kcal
Course: Side Dish , Salad
Cuisine: American

Ingredients

  • 4 pounds Russet potatoes peeled and sliced to 1/8-inch thick
  • 1 large white or yellow onion diced small
  • 3 to 4 cloves garlic finely minced or pressed
  • 2 tablespoons unsalted butter
  • 2 tablespoons all-purpose flour
  • 2 teaspoons kosher salt or to taste
  • 2 teaspoons seasoning blend such as Mrs. Dash Trader Joe’s 21 Salute, or poultry seasoning*
  • 1 teaspoon freshly ground black pepper or to taste
  • 1 cup vegetable or chicken broth
  • 1 cup heavy cream
  • 1 cup sour cream
  • 1.5 cups shredded Colby jack cheese divided
  • 1.5 cups shredded cheddar cheese divided
  • 1 cup shredded Parmesan cheese divided

Instructions

    Cup of Yum
  1. Preheat oven to 400F and to a 9×13-inch casserole dish or baking pan, arrange the potatoes upright in the pan along one of the long edges. Repeat with the remaining potatoes until you have three columns of potato slices; set aside. Tip - If you have a mandoline, use it here!
  2. To a saucepan, add and melt the butter, add the onion and garlic, and cook for 5 minutes; stir frequently.
  3. Add flour, and cook for another minute, whisking nearly constantly, or until the flour is lightly golden browned. This is what’s called a ‘roux’ and is important so that later on the mixture properly thickens.
  4. Add the salt, seasoning blend, pepper, broth, cream, and stir until somewhat thickened, about 3 minutes. 
  5. Turn off the heat and stir in 1 cup each of the Colby Jack and cheddar cheeses and 1/2 cup of the Parmesan; set aside momentarily.
  6. Spread the sour cream over potatoes and pour the cheesy mixture evenly over potatoes.
  7. Evenly sprinkle the remaining one-half cup of each of the three cheeses over potatoes.
  8. Cover potatoes with foil and bake for 1 hour, remove from the oven, and check for doneness. The potatoes should be fork tender and not at all hard. If they're not cooked through yet, recover with the foil and bake for an additional 10 to 15 minutes, or as long as necessary so they cook through.
  9. After the potatoes have cooked through completely, remove and discard the foil, and allow the potatoes to bake uncovered for an additional 30 minutes, or as desired to brown the cheeses. In the final moments of baking the potatoes uncovered, keep a close eye on them so you know exactly how fast the cheese is browning**
  10. Allow potatoes to cool momentarily before serving, about 5 minutes.

Notes

  • *Poultry seasoning tends to have sage in it whereas Mrs. Dash doesn't and sage can be a noticeable so you may want to cut back on the quantity of seasoning if you're sensitive to sage and using poultry seasoning.
  • **If you are confident cook and know how to use your broiler very well, you could broil them for a few moments at the very end. However, I don’t recommend this unless you know what you’re doing in the kitchen because after all that time, you don’t want the potatoes to burn and broilers are notorious for burning things.
  • Although, if you do know what your way around the kitchen and are comfortable turning on your broiler, broiled cheese has so much incredible almost nutty flavor that is just to-die-for!
  • Storage: Potatoes will keep airtight in the fridge for up to 5 days, or in the freezer for up to 4 months; reheat gently in a low oven or the microwave.

Nutrition Information

Serving 1 Calories 649kcal (32%) Carbohydrates 60g (20%) Protein 23g (46%) Fat 36g (55%) Saturated Fat 22g (110%) Polyunsaturated Fat 11g Trans Fat 1g Cholesterol 107mg (36%) Sodium 1516mg (63%) Fiber 7g (28%) Sugar 6g (12%)

Nutrition Facts

Serving: 8Serving

Amount Per Serving

Calories 649

% Daily Value*

Serving 1
Calories 649kcal 32%
Carbohydrates 60g 20%
Protein 23g 46%
Fat 36g 55%
Saturated Fat 22g 110%
Polyunsaturated Fat 11g 65%
Trans Fat 1g 50%
Cholesterol 107mg 36%
Sodium 1516mg 63%
Fiber 7g 28%
Sugar 6g 12%

* Percent Daily Values are based on a 2,000 calorie diet.