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close up of french onion potato bake on a blue plate
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5 from 16 votes

French Onion Potato Bake

The perfect potato side dish for holidays or any other meal
Prep Time15 mins
Cook Time50 mins
Resting time10 mins
Course: Side Dish
Cuisine: American
Servings: 8
Calories: 412kcal
Author: Sula


  • 2 ½ - 3 pounds potatoes peeled
  • 1 cup sour cream
  • 1 cup half n half
  • 1 ½ cups Italian cheese shredded
  • 1.4 oz package French Onion Soup Mix 40g


  • Preheat oven to 400F. Slice potatoes into ¼ -inch thick pieces. (A mandolin or food processor will ensure even thickness)
  • In a large bowl, whisk together sour cream, half and half and soup mix. Add potatoes and ½ cup shredded cheese. Stir to evenly coat.
  • Transfer to a 2.5 to 3-quart casserole dish or pan. Distribute mixture evenly in the pan, then cover pan with lid or foil.
  • Bake at 400F for 50-55 minutes. Check with a fork to verify the potatoes are tender.
  • Remove lid or foil and sprinkle the remaining shredded cheese evenly on top of the potatoes.
  • Return to oven and bake 10-15 minutes until the top is golden brown.
  • Remove from oven and allow to rest 10 minutes before serving



Calories: 412kcal | Carbohydrates: 60g | Protein: 13g | Fat: 14g | Saturated Fat: 8g | Cholesterol: 43mg | Sodium: 584mg | Potassium: 1444mg | Fiber: 7g | Sugar: 4g | Vitamin A: 435IU | Vitamin C: 62mg | Calcium: 214mg | Iron: 3mg

Nutrition values are estimates only, using online calculators. Please verify using your own data.