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Root Vegetable Gratin with Sweet Potatoes, Parsnips, and Beets

Root Vegetable Gratin

A wholesome dish that combines sweet potatoes, parsnips, and beets for a rich and creamy side or main dish.
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Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Servings: 6 servings
Course: Main Course, Side Dish
Cuisine: Comfort Food
Calories: 350
Ingredients Method Notes

Ingredients
  

Root Vegetables
  • 2 medium sweet potatoes, peeled and thinly sliced
  • 2 medium parsnips, peeled and thinly sliced
  • 2 medium beets, peeled and thinly sliced
  • 1 medium onion, thinly sliced
  • 2 cloves garlic, minced
Cream and Cheese Mixture
  • 2 cups heavy cream Can substitute with half-and-half or plant-based cream.
  • 1 cup grated Gruyère cheese Can use different types of cheese if preferred.
  • 1 cup grated Parmesan cheese Can use different types of cheese if preferred.
Seasoning and Extras
  • 2 tablespoons fresh thyme leaves
  • Salt and pepper to taste
  • 2 tablespoons olive oil For sautéing onions and garlic.
  • 1/2 cup breadcrumbs Optional for topping.

Method
 

Preparation
  1. Preheat the oven to 375°F (190°C).
  2. In a large skillet, heat olive oil over medium heat. Add the onions and garlic, and sauté until softened, about 5 minutes.
  3. In a large bowl, combine the sliced sweet potatoes, parsnips, beets, sautéed onions, thyme, salt, and pepper.
  4. In a separate bowl, whisk together the heavy cream, half of the Gruyère, and half of the Parmesan cheese.
Layering and Baking
  1. In a greased 9x13 inch baking dish, layer half of the root vegetable mixture.
  2. Pour half of the cream mixture over the first layer of vegetables.
  3. Repeat with the remaining root vegetable mixture and cream mixture.
  4. Top with the remaining Gruyère and Parmesan cheeses, and sprinkle breadcrumbs on top if using.
  5. Cover with foil and bake for 40 minutes.
  6. Remove the foil and bake for an additional 20 minutes, or until the top is golden and bubbly.
  7. Let cool for 10 minutes before serving.

Notes

Ensure to slice the vegetables evenly for even cooking. You can add different vegetables like carrots or turnips based on preference. If you want a crunchier top, ensure you add breadcrumbs before baking.