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A golden-brown cheesy French onion potato bake served in a rustic white ceramic dish, garnished with fresh herbs. The creamy layers of tender potatoes topped with caramelized onions and melted cheese create a textured, inviting appearance. The dish is placed on a wooden table with a sprig of thyme and a side of fresh salad, showcasing an appetizing, comfort-food presentation.

Creamy French Onion Potato Casserole – Festive Holiday Side Dish

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A rich and cheesy French onion potato bake perfect for holiday dinners and festive gatherings. Layers of tender potatoes, sweet caramelized onions, and melted cheese create a savory, comforting dish.

  • Total Time: 1 hour 15 minutes
  • Yield: 6 servings

Ingredients

Scale
  • 4 large russet potatoes, thinly sliced
  • 2 large onions, sliced
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 2 cups shredded Gruyere or Swiss cheese
  • 1/2 cup grated Parmesan cheese
  • 1 teaspoon thyme
  • Salt and pepper to taste
  • Fresh herbs for garnish

Instructions

  1. Preheat oven to 375°F (190°C). Grease a baking dish.
  2. In a skillet, heat butter and olive oil over medium heat. Add onions and cook until caramelized, about 15 minutes. Season with salt, pepper, and thyme.
  3. Layer half of the sliced potatoes in the baking dish. Spread half of the caramelized onions over the potatoes. Repeat layers.
  4. Top with shredded cheese and Parmesan. Cover with foil.
  5. Bake for 45 minutes. Remove foil and bake another 15 minutes until golden and bubbly.
  6. Garnish with fresh herbs before serving.

Notes

  • For a vegan version, substitute cheese with plant-based cheese and use vegan butter.
  • Ensure potatoes are sliced evenly for consistent cooking.
  • Caramelize onions slowly for maximum flavor.
  • Prep Time: 15 minutes
  • Cook Time: 60 minutes
  • Method: Baking
  • Cuisine: French
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 slice
  • Calories: 350 Kcal
  • Sugar: 7g
  • Sodium: 520mg
  • Fat: 20g
  • Saturated Fat: 12g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 39g
  • Fiber: 4g
  • Protein: 12g
  • Cholesterol: 60mg