Cheesy Root Vegetable Gratin
If you’re looking for a dish that’s both comforting and impressive, then this Cheesy Root Vegetable Gratin is just what you need! It’s one of those recipes that brings warmth to any table, whether it’s a busy weeknight dinner or a festive family gathering. The combination of sweet potatoes, parsnips, and beets creates a vibrant medley that not only tastes great but also looks stunning when served. Trust me, your loved ones will keep coming back for seconds!
This gratin is easy enough for everyday meals but elegant enough to shine during special occasions like Thanksgiving or holiday dinners. Let me walk you through why this recipe has become a staple in my kitchen.
Why You’ll Love This Recipe
- Deliciously creamy: The blend of heavy cream and cheeses makes every bite rich and satisfying.
- Simple preparation: With just a few steps, you can create something that looks gourmet without spending hours in the kitchen.
- Family-friendly: Kids love the cheesy goodness, and it’s a fantastic way to sneak in those nutritious root veggies!
- Make-ahead option: You can prepare it ahead of time and pop it in the oven when you’re ready to eat.
- Versatile side dish: This gratin pairs wonderfully with almost any protein or can be enjoyed on its own!

Ingredients You’ll Need
Gathering these ingredients is half the fun! They are simple, wholesome, and bring out the best flavors in this Cheesy Root Vegetable Gratin. Here’s what you’ll need:
For the Gratin
- 1 tablespoon unsalted butter (softened)
- 1-2 long sweet potatoes (about 2 inches thick), peeled
- 3-4 large parsnips, ends trimmed and peeled
- 3-5 small beets, peeled
- 14 tablespoons heavy cream, divided (whole milk works too)
- 4 ounces grated Parmesan, divided
- 1 tablespoon fresh minced thyme, divided (plus more for garnish)
- 1 garlic clove, minced
- 1 ounce shredded gruyere
- Salt and pepper to taste
Variations
One of the best parts about this recipe is how flexible it is! You can easily customize it based on what you have on hand or your personal preferences.
- Add other root veggies: Feel free to include carrots or turnips for added flavor and color.
- Switch up the cheese: If gruyere isn’t available, use cheddar or mozzarella for a different taste.
- Herb infusion: Experiment with different herbs like rosemary or sage to enhance the aroma.
- Lighten it up: Swap some heavy cream with vegetable broth for a lighter version without losing flavor.
How to Make Cheesy Root Vegetable Gratin
Step 1: Preheat Your Oven
First things first—preheat your oven to 400˚F. This ensures our gratin bakes evenly. While that’s heating up, grease a 3-quart baking dish with softened butter. It’ll help prevent sticking and add a bit more flavor.
Step 2: Prepare Your Veggies
Slice your sweet potatoes, parsnips, and beets into very thin rounds. Using a mandoline makes this super easy! As you slice each vegetable, transfer them into separate bowls. Keeping them separate helps us season each one perfectly before layering.
Step 3: Season Each Vegetable
Pour 4 tablespoons of cream over the bowls with sweet potatoes and parsnips. Use 2 tablespoons for the beets. Top each bowl with ½ ounce of grated Parmesan and 1 teaspoon of minced thyme. Remember to season generously with salt and pepper before tossing everything together until well coated.
Step 4: Layer Your Dish
Pour the remaining ¼ cup of cream into the bottom of your greased baking dish. Sprinkle it with another ½ ounce of Parmesan cheese along with the minced garlic. Now comes the fun part—grab stacks of your vegetables! Line them up standing on their sides in rows: first sweet potatoes, then parsnips followed by beets. Repeat until all veggies are arranged beautifully.
Step 5: Season Again
Before we bake our masterpiece, sprinkle the top with salt, pepper, and the rest of your Parmesan cheese. This will create that lovely golden crust we all crave!
Step 6: Bake Until Tender
Cover your baking dish with foil and bake for about 30 minutes or until the vegetables are tender. Uncover it after this time and sprinkle shredded gruyere on top for that irresistible cheesy layer.
Step 7: Final Bake
Pop it back into the oven uncovered for an additional 18 to 20 minutes until everything is fork-tender and bubbly brown on top. The smell wafting through your kitchen will surely tempt everyone around!
Step 8: Serve Up Happiness
Finish off your Cheesy Root Vegetable Gratin with a sprinkle of fresh thyme leaves before serving. Enjoy watching smiles light up as everyone digs in!
This recipe truly brings comfort food to life while showcasing vibrant vegetables in an unforgettable way! Happy cooking!
Pro Tips for Making Cheesy Root Vegetable Gratin
Creating the perfect Cheesy Root Vegetable Gratin is all about technique and a few handy tips. Here are some tried-and-true strategies to elevate your dish!
- Use a mandoline for even slices: This kitchen tool ensures that your vegetables are sliced uniformly, which promotes even cooking and gives your gratin a professional look.
- Don’t skip the seasoning: Properly salting each layer of vegetables enhances their natural sweetness and flavor. A well-seasoned dish will make all the difference in taste.
- Let it rest before serving: Allowing your gratin to sit for about 10 minutes after it comes out of the oven helps the layers set, making for cleaner slices when serving.
- Experiment with cheese: While Parmesan and Gruyere are fantastic, feel free to mix in other cheeses you love, such as mozzarella or cheddar, for added flavor and creaminess.
- Add herbs for freshness: Incorporating fresh herbs like rosemary or parsley can brighten up the rich flavors of the gratin, giving it a lovely aroma and a pop of color on the plate.
How to Serve Cheesy Root Vegetable Gratin
This scrumptious Cheesy Root Vegetable Gratin not only tastes divine but also looks stunning on any table. With its colorful layers of root vegetables, it’s sure to impress at gatherings or family dinners.
Garnishes
- Fresh thyme leaves: A sprinkle of these aromatic leaves adds an earthy flavor and a touch of elegance.
- Chopped chives: These bring brightness and a mild onion flavor that complements the richness of the gratin beautifully.
Side Dishes
- Roasted Brussels sprouts: Their crispy texture and slightly bitter flavor provide a delightful contrast to the creamy gratin.
- Garlic bread: Perfect for soaking up any leftover creamy sauce, garlic bread is always a crowd-pleaser.
- Simple green salad: A mix of leafy greens dressed in vinaigrette adds freshness and balances out the richness of the gratin.
- Herbed quinoa: This nutty grain can add an extra protein boost while being light enough not to overpower the main dish.
With these serving suggestions and pro tips, your Cheesy Root Vegetable Gratin is bound to be a hit at any meal! Enjoy every bite!

Make Ahead and Storage
This Cheesy Root Vegetable Gratin is not only a delightful dish to serve fresh but also makes for fantastic meal prep! You can prepare it ahead of time and store it, making weeknight dinners a breeze.
Storing Leftovers
- Allow the gratin to cool completely before storing.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 3 days.
Freezing
- If you want to freeze the gratin, do so before baking.
- Wrap the unbaked gratin tightly in plastic wrap and then in aluminum foil.
- Freeze for up to 2 months.
Reheating
- To reheat, thaw overnight in the refrigerator if frozen.
- Bake covered at 350˚F until warmed through, about 25-30 minutes.
- For a crispy top, uncover during the last 10 minutes of reheating.
FAQs
Here are some common questions about making this delicious Cheesy Root Vegetable Gratin.
Can I use other root vegetables in this Cheesy Root Vegetable Gratin?
Absolutely! Feel free to experiment with other root vegetables like carrots or turnips. Just ensure they are sliced thinly for even cooking.
How can I make this Cheesy Root Vegetable Gratin dairy-free?
You can substitute heavy cream with a plant-based milk alternative like almond or oat milk and use dairy-free cheese options for a creamier texture.
What should I serve with Cheesy Root Vegetable Gratin?
This gratin pairs beautifully with roasted meats, salads, or even as a hearty vegetarian main dish alongside crusty bread.
Final Thoughts
I hope you enjoy making this Cheesy Root Vegetable Gratin as much as I do! It’s not just a side dish; it’s a celebration of flavors that brings warmth to any table. Whether you’re serving it at a family gathering or enjoying it on a cozy weeknight, this gratin will surely impress. Happy cooking!
Cheesy Root Vegetable Gratin
Indulge in the comforting flavors of this Cheesy Root Vegetable Gratin, a delightful dish that pairs well with any meal and is perfect for gatherings or cozy weeknight dinners. Featuring a vibrant mix of sweet potatoes, parsnips, and beets, this gratin is not only visually stunning but also packed with nutrition. Creamy layers of cheese and heavy cream create a rich texture that will keep your loved ones coming back for seconds. Plus, it’s easy to prepare ahead of time, making entertaining hassle-free. Give this recipe a try, and let it become a cherished favorite in your kitchen!
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: Serves 8
- Category: Side Dish
- Method: Baking
- Cuisine: Vegetarian
Ingredients
- 1 tablespoon unsalted butter (softened)
- 1–2 long sweet potatoes (about 2 inches thick), peeled
- 3–4 large parsnips, ends trimmed and peeled
- 3–5 small beets, peeled
- 14 tablespoons heavy cream, divided
- 4 ounces grated Parmesan, divided
- 1 tablespoon fresh minced thyme, divided
- 1 garlic clove, minced
- 1 ounce shredded gruyere
- Salt and pepper to taste
Instructions
- Preheat oven to 400˚F. Grease a 3-quart baking dish with softened butter.
- Thinly slice sweet potatoes, parsnips, and beets; place in separate bowls.
- Pour 4 tablespoons of cream over sweet potatoes and parsnips; 2 tablespoons over beets. Add Parmesan and thyme to each bowl, then season with salt and pepper.
- Layer the bottom of the baking dish with remaining cream and garlic; arrange vegetables upright in rows.
- Sprinkle top with salt, pepper, and remaining Parmesan.
- Cover with foil; bake for 30 minutes until tender. Uncover, add Gruyere on top, then bake uncovered for an additional 18–20 minutes until bubbly brown.
- Let rest for 10 minutes before serving.
Nutrition
- Serving Size: 1/8 of gratin (approximately 150g)
- Calories: 210
- Sugar: 6g
- Sodium: 320mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 4g
- Protein: 5g
- Cholesterol: 35mg
