Name: Cheesy Root Vegetable Gratin to Warm Your Holiday Table
Prep time: 30 min
Cook time: 60 min
Total time: 100 min
Ingredients: 4 tablespoons Unsalted Butter (for greasing baking dish); 3 cups Sweet Potatoes (peeled and sliced); 2 cups Parsnips (peeled and sliced); 2 cups Beets (peeled and sliced); 2 cups Heavy Cream (can substitute whole milk); 1 ounce Grated Parmesan Cheese (divided); 1 tablespoon Fresh Minced Thyme (or dried thyme); 1 clove Garlic (finely minced); 1 cup Shredded Gruyère Cheese (for topping); 1 teaspoon Salt (to taste); 1 teaspoon Pepper (to taste)

As I stood in my kitchen, the delightful aroma of roasted root vegetables filled the air, instantly transporting me to the warm, cozy gatherings of my childhood. This Beautiful Cheesy Root Vegetable Gratin is a heartfelt centerpiece for any occasion, combining layers of sweet potatoes, earthy beets, and nutty parsnips, all draped in a creamy garlic cheese sauce. Not only is this dish a perfect comfort food that can be prepared ahead of time, but it also elevates your holiday table with its vibrant colors and rich flavors. Whether you’re hosting Thanksgiving dinner or simply craving a heartwarming meal, this gratin is sure to impress. Ready to create a comforting dish that’s not just scrumptious but also visually stunning? Let’s dive into the recipe!

Why is this gratin a must-try?

Irresistible Layers: The stunning combination of sweet potatoes, parsnips, and beets brings a colorful twist, creating a feast for the eyes and palate.
Creamy Indulgence: A rich blend of heavy cream, garlic, and cheese elevates each mouthful, making it a true comfort dish.
Make-Ahead Convenience: Prepare this gratin a day in advance for easy entertaining, seamlessly fitting into your holiday prep.
Versatile Pairing: Perfect as a festive side or vegetarian main dish, it’s a fantastic companion to roasted meats or a delightful centerpiece.
Nutritional Value: Packed with vitamins A and C, this gratin not only tastes great but also brings healthy ingredients to the table, making it a guilt-free indulgence. For more hearty options, consider trying our Vegetable Soup Wholesome or Potato Cranberry Gratin!

Cheesy Root Vegetable Gratin Ingredients

For the Gratin

Unsalted Butter – Adds richness and is used to grease the baking dish.
Sweet Potatoes – Base flavor; should be peeled and sliced. Substitution: Other root vegetables can be used.
Parsnips – Contributes a sweet and nutty flavor; similarly prepared to sweet potatoes.
Beets – Distinct flavor and color; must be peeled to avoid earthy taste.
Heavy Cream – Creates a smooth, creamy texture; can use whole milk, but the dish will be less rich.
Grated Parmesan Cheese – Adds a salty flavor; divided into layers within the dish.
Fresh Minced Thyme – For aromatic flavor enhancement; can use dried thyme if fresh is unavailable.
Garlic Clove – Infuses the dish with savory notes; finely minced.
Shredded Gruyère Cheese – Provides a melty, flavorful topping; can substitute with another melting cheese.
Salt and Pepper – Essential for seasoning to enhance all flavors.

Step‑by‑Step Instructions for Cheesy Root Vegetable Gratin

Step 1: Preheat and Prepare
Begin by preheating your oven to 400°F (204°C). While it heats, take a 3-quart baking dish and generously grease the bottom and sides with unsalted butter. This will prevent the Cheesy Root Vegetable Gratin from sticking and enhance its flavor as it cooks. Set the dish aside, and get ready for the vegetable slicing.

Step 2: Slice the Vegetables
Using a mandoline, slice the sweet potatoes, parsnips, and beets into very thin rounds; aim for about 1/8 inch thick. This ensures even cooking and a delightful texture in your Cheesy Root Vegetable Gratin. As you slice, arrange each vegetable in separate bowls to make the tossing step more manageable.

Step 3: Toss with Cream and Seasonings
In their respective bowls, carefully toss the sliced sweet potatoes and parsnips with 4 tablespoons of heavy cream, ½ ounce of grated Parmesan, 1 teaspoon of minced thyme, salt, and pepper. Repeat this process for the sliced beets, using 2 tablespoons of cream. Each slice should be well-coated for maximum flavor as it bakes.

Step 4: Layer the Base
Pour 1/4 cup of cream into the bottom of your greased baking dish. Sprinkle with an additional ½ ounce of Parmesan and the finely minced garlic to create a flavorful base. This layer adds depth to the gratin, ensuring the bottom slices keep moist while baking.

Step 5: Assemble the Gratin
Now it’s time to layer those beautiful vegetables! Start with a row of sweet potato slices, followed by parsnips, and then beets, arranging them in a standing position to display the vibrant colors. Repeat this process until all the sliced vegetables are snugly in place, creating six elegant rows.

Step 6: Season the Top Layer
Once your Cheesy Root Vegetable Gratin is fully layered, generously season the top layer with salt, pepper, and the remaining grated Parmesan cheese. This will form a golden crust as it bakes, enhancing both flavor and texture in this comfort dish.

Step 7: Cover and Bake
Cover the baking dish tightly with foil and place it in the preheated oven. Bake for 30 minutes, until the vegetables become tender and the aromas fill your kitchen. This initial baking step ensures that everything cooks evenly before the final cheese layer is added.

Step 8: Uncover and Add Cheese
After 30 minutes, carefully remove the foil and sprinkle shredded Gruyère cheese over the top of the gratin. Return the dish to the oven and bake uncovered for an additional 18-20 minutes, or until the cheese is melted, bubbly, and lightly browned. The gratin should have a glorious golden top, beckoning you to dig in.

Step 9: Garnish and Serve
Once out of the oven, let your beautiful Cheesy Root Vegetable Gratin rest for a few minutes. Garnish with fresh thyme to add a pop of color and an aromatic touch. This dish is perfect for serving alongside your holiday meals or as a delightful vegetarian centerpiece.

Make Ahead Options

Preparing the Cheesy Root Vegetable Gratin ahead of time is a game-changer for busy home cooks! You can slice the sweet potatoes, parsnips, and beets, and toss them with cream, cheese, and seasonings up to 24 hours in advance. Just tightly cover the assembled gratin with foil and refrigerate it to maintain its vibrant colors. This not only saves you time on the day of your gathering but also allows the flavors to meld beautifully. When you’re ready to bake, simply follow the same instructions, adding an extra 5-10 minutes to the baking time as needed. Trust me, this gratin retains its creamy goodness and delicious taste just as if it was freshly prepared!

How to Store and Freeze Cheesy Root Vegetable Gratin

Fridge: Store the Cheesy Root Vegetable Gratin in an airtight container for up to 3 days. Reheat in the oven or microwave until heated through.

Freezer: For longer storage, freeze the gratin before baking. Wrap it tightly in plastic wrap and foil, then store for up to 3 months.

Make-Ahead: Prepare the gratin the day before and refrigerate, but expect a slight color change in the beets. Just add a few extra minutes to the baking time.

Reheating: When ready to serve, reheat from the fridge at 350°F (175°C) until warmed throughout or from frozen, covering with foil to avoid over-browning.

Expert Tips for Cheesy Root Vegetable Gratin

Even Slices Matter: A mandoline helps achieve uniform thickness, ensuring the root vegetables cook evenly and maintain their textures throughout the Cheesy Root Vegetable Gratin.
Limit Beet Bleeding: To prevent those gorgeous colors from mixing, lightly coat the beets with cream before layering. This keeps the layers distinct and beautiful.
Prep Ahead: You can assemble the gratin a day in advance, just cover it tightly and refrigerate. Be aware that the beets may slightly alter in color but still taste fantastic!
Cheese Choices: If you’re out of Gruyère, try using other melting cheeses like mozzarella or cheddar for a fun twist in flavor.
Watch the Time: Every oven is different—keep an eye on the topping during the last few minutes of baking to ensure it doesn’t over-brown.
Season Generously: Don’t skimp on the salt and pepper. Proper seasoning is key to enhancing all the heavenly flavors in your Cheesy Root Vegetable Gratin.

Cheesy Root Vegetable Gratin Variations

Feel free to indulge your culinary creativity with delightful twists and substitutions!

Dairy-Free: Replace heavy cream with coconut cream and use a dairy-free cheese alternative for a creamy, plant-based version.
Colorful Additions: Add vibrant layers of colored carrots or sweet bell peppers for extra visual appeal and a dash of flavor. Imagine the rainbow of colors lighting up your table!
Spice It Up: Sprinkle in a pinch of cayenne or red pepper flakes for a subtle kick, turning your gratin into a spicy surprise that awakens the palate.
Herb Twist: Swap fresh thyme for fresh rosemary or sage to give your gratin an aromatic twist that pairs wonderfully with root vegetables. These herbs will take your gratin on a flavor journey!
Nutty Flavor: Toasted walnuts or hazelnuts can be layered for a crunchy, nutty finish that adds both texture and richness to your dish— a delightful surprise in every bite!
Cheese Variations: Experiment with different cheeses like gouda, feta, or even a sharp cheddar for a bolder flavor profile. Each cheese brings a unique taste that can elevate your gratin experience.
Add Protein: Incorporate cooked bacon or sautéed mushrooms for a heartier version that brings in savory depths and additional texture, transforming it into a complete meal.
Root Veggie Blend: Mix and match with other root veggies like turnips or rutabagas to expand your flavor palette even further. Each root vegetable adds its own unique sweetness or earthiness, enhancing the entire dish.

Don’t forget to explore other comforting dishes like our delightful Healthy Sauteed Vegetables alongside your Cheesy Root Vegetable Gratin for a wholesome meal!

What to Serve with Cheesy Root Vegetable Gratin

As you revel in the rich, creamy goodness of this gratin, consider these delightful companions to create a well-rounded feast.

Roasted Chicken: Juicy and herb-infused, roasted chicken brings a savory contrast that complements the sweet and creamy layers of the gratin.
Brussels Sprouts: Crispy roasted Brussels sprouts add a delightful crunch and a hint of bitterness, perfectly balancing the dish’s indulgent flavors.
Garden Salad: A fresh garden salad with a zesty vinaigrette helps to cleanse the palate, providing brightness against the rich gratin.
Crusty Bread: Serve with a warm, crusty baguette to soak up the creamy sauce; every bite is a comforting joy.
Wine Pairing: A light-bodied Chardonnay enhances the creamy texture of the gratin, while a fruity Pinot Noir beautifully complements the earthy root vegetables.
Apple Crisp: End the meal on a sweet note with a warm apple crisp, its cinnamon-spiced filling juxtaposed against the gratin’s creaminess for a perfect finish.

Cheesy Root Vegetable Gratin Recipe FAQs

How do I choose ripe root vegetables for this gratin?
Absolutely! When selecting sweet potatoes, look for ones that are firm with smooth skin and no dark spots. For parsnips, they should be crisp to the touch and lightly colored; avoid any that feel soft or have blemishes. Beets should have a vibrant color, with no signs of wilting or softness. Freshness ensures the best taste and texture in your Cheesy Root Vegetable Gratin.

What’s the best way to store leftover Cheesy Root Vegetable Gratin?
Very! After serving, allow the gratin to cool completely. Transfer it to an airtight container and store it in the refrigerator for up to 3 days. When reheating, pop it in the oven or microwave until it’s heated through. If you prefer a crispy top, reheat it in the oven at 350°F (175°C) for about 15 to 20 minutes.

Can I freeze the Cheesy Root Vegetable Gratin?
Absolutely! To freeze, I recommend preparing the gratin but not baking it first. Wrap it tightly in plastic wrap and then in foil to prevent freezer burn. It can be stored for up to 3 months. When you’re ready to enjoy it, simply thaw it overnight in the fridge, then bake as per the original instructions, possibly adding a few extra minutes if it’s still chilly.

What if my root vegetables are too soft? Can I use them?
Great question! Soft root vegetables typically aren’t ideal, as they can lead to an undesirable texture in your dish. If you find them slightly soft but not spoiled (no dark spots or foul odors), you can still use them, just cut away any compromised areas. Be sure to bake the gratin a bit longer to ensure they soften to the perfect creamy, tender consistency.

Are there any dietary considerations for the Cheesy Root Vegetable Gratin?
Very! This gratin is a delightful vegetarian option, but if you have dairy allergies or are lactose intolerant, you can substitute heavy cream with a dairy-free alternative like coconut cream or cashew cream, and use nut-based cheese options. Just be aware that the flavor will differ slightly, but it should still be creamy and delicious!

Can I prepare the Cheesy Root Vegetable Gratin a day in advance?
Absolutely! You can assemble the gratin a day ahead, covering it tightly and refrigerating it. Just remember that beets may alter in color, but the taste will remain fabulous! When ready to bake, simply add a few extra minutes to the baking time to ensure it’s heated through and bubbly.