and Beets Recipe
This Root Vegetable Gratin features a delicious medley of sweet potatoes, parsnips, and beets layered and baked in a rich, garlicky cream sauce topped with melted Gruyère and Parmesan cheese. It is a comforting, colorful dish perfect as a side for any meal or a hearty vegetarian main course.
- Author: Douaa
- Prep Time: 15 minutes
- Cook Time: 60 minutes
- Total Time: 75 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: French-inspired
- Diet: Vegetarian
Root Vegetables:
- 2 cups sweet potatoes, thinly sliced (300 g)
- 2 cups parsnips, thinly sliced (250 g)
- 2 cups beets, peeled and thinly sliced (300 g)
Cream Sauce:
- 1 cup heavy cream (240 ml)
- 2 cloves garlic, minced
- 1 teaspoon salt (6 g)
- 1/2 teaspoon black pepper (2 g)
- 1/2 teaspoon thyme or rosemary (1 g)
Cheese Topping:
- 1 cup grated Gruyère or sharp cheddar (100 g)
- 2 tablespoons Parmesan, grated (20 g)
Optional Garnish:
- Preheat the oven: Preheat your oven to 375°F (190°C). Butter a baking dish generously to prevent sticking and add flavor.
- Layer the vegetables: Arrange the thinly sliced sweet potatoes, parsnips, and beets evenly in the prepared baking dish to create uniform layers for even cooking.
- Prepare the cream sauce: In a bowl, whisk together the heavy cream, minced garlic, salt, black pepper, and thyme or rosemary until combined. This sauce will infuse the vegetables with rich and aromatic flavors.
- Pour sauce over vegetables: Pour the cream mixture evenly over the layered vegetables, ensuring all slices are moistened.
- Add cheese topping and cover: Sprinkle the grated Gruyère or sharp cheddar and Parmesan evenly over the top. Cover the dish tightly with aluminum foil to retain moisture during baking.
- Bake covered: Place the covered dish in the oven and bake for 40 minutes, allowing the vegetables to cook through and the sauce to thicken.
- Bake uncovered: Remove the foil and continue baking for another 15–20 minutes until the cheese topping is golden brown and the vegetables are tender when pierced with a fork.
- Rest and garnish: Let the gratin rest for 10 minutes after removing from the oven to set. Garnish with fresh thyme leaves if desired, then serve warm.
Notes
- You can substitute thyme with rosemary or other fresh herbs like sage for varied flavor.
- For a lower-fat option, use half-and-half instead of heavy cream, though the texture will be less rich.
- Be sure to slice vegetables thinly and uniformly for even cooking.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven to retain crispness.
- This dish pairs wonderfully with roasted meats or as a hearty vegetarian entrée.
Nutrition
- Serving Size: 1 serving (approx. 1/6 of recipe)
- Calories: 320 kcal
- Sugar: 8 g
- Sodium: 400 mg
- Fat: 20 g
- Saturated Fat: 12 g
- Unsaturated Fat: 6 g
- Trans Fat: 0 g
- Carbohydrates: 30 g
- Fiber: 5 g
- Protein: 10 g
- Cholesterol: 60 mg
Keywords: root vegetable gratin, sweet potato gratin, parsnip recipe, beet gratin, vegetarian side dish, baked vegetable casserole, cheesy gratin