Cheesy French Onion Potatoes
Tender sliced potatoes baked in a creamy French onion sauce with Gruyère, Swiss, and mozzarella, topped with crispy fried onions.
Print
Pin
Servings: 12 servings
Ingredients
- 10.5 oz condensed French onion soup
- 1 packet dry onion soup mix
- 1½ cups heavy cream
- 1 cup sour cream
- 1 teaspoon Worcestershire sauce
- 1 teaspoon garlic powder
- ½ teaspoon black pepper
- 3 pounds Yukon Gold potatoes peeled and sliced ⅛-inch thick
- 1 cup Gruyère cheese shredded
- 1 cup Swiss cheese shredded
- 2 cups mozzarella cheese shredded, divided
- ½ cup Parmesan cheese grated
- 1½ cups crispy fried onions optional
- 2 tablespoons chopped parsley optional
Instructions
- Preheat the oven to 350°F and grease a 9x13-inch baking dish.
- Whisk together the French onion soup, onion soup mix, heavy cream, sour cream, Worcestershire sauce, garlic powder, and black pepper until smooth.
- Stir in the Gruyère, Swiss, 1½ cups of the mozzarella, and the Parmesan.
- Layer one-third of the potatoes in the dish, then spoon one-third of the sauce over the top. Repeat twice more, ending with a layer of sauce.
- Cover tightly with foil and bake for 70 minutes.
- Uncover, check that the potatoes are nearly fork tender, and sprinkle the remaining mozzarella over the top.
- Bake uncovered for 15–20 minutes, until the potatoes are tender and the cheese is bubbling.
- Top with crispy fried onions and parsley, then let rest 15 minutes before serving.
Notes
This casserole can be assembled up to 24 hours ahead and refrigerated unbaked. You can also freeze it unbaked for up to 2 months and thaw it overnight before baking.
You can use red potatoes in place of the Yukon gold.
Refrigerate baked leftovers covered for up to 4 days.
Nutrition
Calories: 444kcal | Carbohydrates: 29g | Protein: 16g | Fat: 30g | Saturated Fat: 17g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Cholesterol: 84mg | Sodium: 761mg | Potassium: 709mg | Fiber: 3g | Sugar: 4g | Vitamin A: 954IU | Vitamin C: 24mg | Calcium: 398mg | Iron: 1mg
Nutrition Disclaimer
All nutritional information provided is an estimate. For specific dietary needs or concerns, we recommend consulting a nutrition calculator or a qualified expert.
Tried this recipe?Please Leave a Review !
