Easy Roasted Root Vegetable Gratin Recipe

 This Easy Roasted Root Vegetable Gratin is a warm, rustic, and flavorful dish that celebrates the earthy sweetness of root vegetables layered with creamy sauce and golden cheese. It’s a perfect side dish for family dinners or holiday feasts, adding color and comfort to any table.

Cooking Time: 1 hour 10 minutes

Servings: 6

Ingredients:

2 medium potatoes, peeled and thinly sliced

2 medium carrots, peeled and thinly sliced

1 parsnip, peeled and thinly sliced

1 small sweet potato, peeled and thinly sliced

1 small turnip, peeled and thinly sliced

1 tablespoon olive oil

1 teaspoon salt

½ teaspoon black pepper

1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)

1 cup heavy cream (or plant-based cream for a vegan version)

1 garlic clove, minced

½ cup grated Parmesan cheese

1 cup shredded Gruyère or cheddar cheese

Instructions:

  1. Preheat the Oven:

    Set the oven to 400°F (200°C). Lightly grease a baking dish with olive oil or butter.

  2. Prepare the Vegetables:

    In a large bowl, toss the sliced potatoes, carrots, parsnip, sweet potato, and turnip with olive oil, salt, pepper, and thyme until evenly coated.

  3. Layer the Vegetables:

    Arrange the vegetable slices in overlapping layers in the prepared baking dish, alternating colors for a beautiful presentation.

  4. Make the Cream Mixture:

    In a small bowl, mix heavy cream with minced garlic. Pour the cream evenly over the vegetables.

  5. Add Cheese and Bake:

    Sprinkle Parmesan cheese between a few layers, then top with the shredded Gruyère or cheddar. Cover with foil and bake for 40 minutes.

  6. Finish and Brown:

    Remove the foil and bake for another 15–20 minutes, until the top is golden brown and the vegetables are tender when pierced with a fork. Let it rest for 10 minutes before serving.

Nutrition (Per Serving):

Calories: 270

Protein: 9g

Carbohydrates: 32g

Fat: 12g

Fiber: 5g

Tips:

  • You can add beets for extra color but slice them thinly to avoid bleeding.

  • Substitute half of the cream with milk for a lighter version.

  • For added crunch, sprinkle breadcrumbs on top before the final bake.

  • Use a mandoline for even, thin slices to help the vegetables cook uniformly.