Cheesy Root Veggie Gratin
Alright, let’s talk about this Cheesy Root Veggie Gratin. It’s basically a cozy, cheesy hug in a baking dish. You’ve got layers of thinly sliced sweet potatoes, parsnips, and beets, all mingling together under a blanket of creamy, cheesy sauce. The Parmesan gives it that salty, nutty kick, and the Gruyere melts into gooey perfection. Then, there’s a little bit of fresh thyme sprinkled in to keep things bright and herby. It’s one of those dishes that looks fancy but is actually pretty easy to whip up. Perfect for a laid-back dinner or when you’re trying to impress at a family gathering.
Why You’ll Love This Recipe
- Crowd-Pleaser: This Cheesy Root Veggie Gratin is sure to impress guests at any gathering.
- Easy to Prepare: With simple steps, even novice cooks can create this delicious dish.
- Flavorful Layers: Combining sweet potatoes, parsnips, and beets offers an explosion of flavors.
- Versatile Side Dish: Pair it with your favorite protein or serve it as a vegetarian option.
- Comfort Food: It warms you up on chilly nights with its creamy texture and cheesy goodness.
Tools and Preparation
Before you start cooking your Cheesy Root Veggie Gratin, gather your tools. Having the right equipment will make the process smoother and more enjoyable.
Essential Tools and Equipment
- Mandoline slicer
- 3-quart baking dish
- Mixing bowls
- Knife and cutting board
- Measuring cups and spoons
Importance of Each Tool
- Mandoline slicer: Ensures even slicing for uniform cooking and presentation.
- Baking dish: A sturdy dish provides even heat distribution for perfect results.
- Mixing bowls: Help in keeping ingredients organized and easy to combine.

Ingredients
For the Gratin
- 1 tablespoon unsalted butter (softened)
- 12 long sweet potatoes (each about 2 inches thick, peeled)
- 3 to 4 large parsnips (trimmed and peeled)
- 3 to 5 small beets (peeled)
- 1 1/4 cup heavy cream (divided; whole milk can be used instead)
- 4 ounces grated Parmesan cheese (divided)
- 1 tablespoon fresh thyme (minced; divided plus extra for garnish)
- 1 clove garlic (minced)
- 1 ounce shredded Gruyere cheese
- Salt and freshly ground black pepper (to taste)
How to Make Cheesy Root Veggie Gratin
Step 1: Preheat the Oven
Start by preheating your oven to 400˚F. Grease a 3-quart baking dish with softened butter and set it aside.
Step 2: Prepare Your Vegetables
Slice your sweet potatoes, parsnips, and beets into thin rounds:
* If you have a mandoline, now’s the time to use it—it’ll make the slicing super easy and even.
* Place each veggie in its own separate bowl.
Step 3: Coat the Vegetables
Pour cream over each vegetable:
* Pour 4 tablespoons of cream over the sweet potatoes and parsnips.
* Pour 2 tablespoons over the beets.
* Sprinkle each bowl with 1/2 ounce of grated Parmesan and 1 teaspoon of minced thyme.
* Add salt and pepper generously before tossing each bowl until coated well.
Step 4: Prepare Baking Dish Base
Pour the remaining 1/4 cup of cream into the bottom of your greased baking dish:
* Sprinkle in 1/2 ounce of Parmesan cheese.
* Add the minced garlic evenly across the base.
Step 5: Layer Your Vegetables
Time to layer! Start building your gratin:
* Begin with sweet potatoes arranged diagonally standing up at the top of the dish.
* Follow with a row of parsnips, then add a row of beets.
* Continue alternating until you’ve filled the dish with about six colorful rows.
Step 6: Season Top Layer
Sprinkle the top layer:
* Add extra salt, pepper, and remaining Parmesan cheese on top.
* Cover the dish tightly with foil before placing it into the oven.
Step 7: Bake Covered
Let it bake covered for about:
* 30 minutes or until veggies soften.
Step 8: Add Gruyere Cheese
Remove foil from the dish:
* Sprinkle shredded Gruyere over the top before placing back in the oven uncovered.
Step 9: Final Bake
Bake uncovered for another:
* 18-20 minutes until veggies are tender, cheese is melted, and top is nicely browned.
Finish with fresh thyme leaves for garnish. Serve hot and watch this delightful Cheesy Root Veggie Gratin disappear from your table!
How to Serve Cheesy Root Veggie Gratin
Cheesy Root Veggie Gratin is a comforting dish that can be enjoyed in various ways. Whether it’s a fancy dinner or a casual weeknight meal, these serving suggestions will elevate your dining experience.
As a Standalone Dish
- This gratin is hearty enough to serve on its own, making it perfect for a light lunch or dinner option.
With Fresh Salad
- Pair the gratin with a vibrant green salad. A simple mix of arugula, cherry tomatoes, and a lemon vinaigrette will complement the rich flavors.
Alongside Grilled Chicken
- Serve this gratin as a side to grilled chicken. The savory flavors of the chicken enhance the creamy cheese and root veggies.
With Crusty Bread
- Offer warm, crusty bread on the side for dipping into the cheesy layers. A rustic sourdough or whole grain bread works wonderfully.
Topped with Fresh Herbs
- Garnish each serving with additional fresh thyme or parsley to add color and freshness. This also enhances the dish’s aroma.
How to Perfect Cheesy Root Veggie Gratin
Achieving perfection with your Cheesy Root Veggie Gratin is easy with these helpful tips.
- Use uniform slices: Ensure that all vegetables are sliced evenly for consistent cooking and texture throughout the dish.
- Layer creatively: Alternate vegetables in different patterns for a visually appealing presentation. This not only looks great but adds varied flavors.
- Adjust seasoning: Don’t hesitate to taste as you layer. Adjust salt and pepper levels according to your preference for maximum flavor.
- Experiment with cheeses: Feel free to mix other cheeses like mozzarella or cheddar with Gruyere for unique flavor combinations.
- Let it rest: Allow the gratin to sit for about 10 minutes after baking. This helps set the layers and makes serving easier.
Best Side Dishes for Cheesy Root Veggie Gratin
Cheesy Root Veggie Gratin pairs well with various side dishes that complement its rich flavors. Here are some excellent choices:
-
Garlic Green Beans
Lightly sautéed green beans with garlic provide a crisp contrast to the creamy gratin. -
Roasted Brussels Sprouts
Roasted Brussels sprouts add a nice crunch and earthy flavor that balances the richness of the gratin. -
Quinoa Salad
A refreshing quinoa salad loaded with vegetables can lighten up your meal while adding protein. -
Herbed Couscous
Fluffy couscous flavored with herbs offers a quick and flavorful side that complements the gratin beautifully. -
Steamed Broccoli
Steamed broccoli adds color and nutrients, making it a healthy choice alongside this cheesy delight. -
Balsamic Glazed Carrots
Sweet carrots glazed with balsamic vinegar create an exciting flavor profile that pairs well with cheesy dishes. -
Simple Tomato Salad
A fresh tomato salad dressed in olive oil and vinegar brings brightness and acidity to balance out the richness of the gratin. -
Crispy Potato Wedges
Serve crispy potato wedges seasoned with herbs as an indulgent side that enhances the comfort factor of your meal.
Common Mistakes to Avoid
When making your Cheesy Root Veggie Gratin, it’s easy to overlook a few key steps. Here are some common mistakes to watch out for:
- Skipping the slicing uniformity: If your veggies are not sliced evenly, they will cook unevenly. Use a mandoline for consistent slices.
- Overcrowding the baking dish: Packing too many layers can lead to soggy gratin. Ensure each layer is neat and spaced evenly for best results.
- Ignoring seasoning: Underseasoned vegetables can taste bland. Make sure you season each layer adequately with salt and pepper.
- Not covering while baking: Leaving the dish uncovered at the start can dry out the veggies. Cover it with foil for the first half of baking.
- Rushing the cooling time: Cutting into your gratin too soon can make it fall apart. Allow it to cool slightly before serving for better structure.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- It will last up to 3-4 days in the fridge.
Freezing Cheesy Root Veggie Gratin
- Cool completely before freezing.
- Place in a freezer-safe container; it can be frozen for up to 2 months.
Reheating Cheesy Root Veggie Gratin
- Oven: Preheat to 350°F. Cover with foil and heat for about 20-25 minutes until warmed through.
- Microwave: Place a single serving on a microwave-safe plate. Heat on high for 2-3 minutes or until hot.
- Stovetop: Heat in a skillet over medium-low heat, stirring occasionally until warmed evenly.
Frequently Asked Questions
Here are some common questions about making Cheesy Root Veggie Gratin.
Can I use different root vegetables in my Cheesy Root Veggie Gratin?
Yes! Feel free to experiment with other root vegetables like carrots or turnips for added flavor and variety.
What type of cheese works best in this gratin?
Parmesan and Gruyere provide great flavor, but you can also use other melting cheeses like mozzarella or cheddar if desired.
Can I make this dish ahead of time?
Absolutely! Prepare the gratin up to the baking step, cover it, and refrigerate for up to 24 hours before baking.
How do I make my Cheesy Root Veggie Gratin vegan-friendly?
Substitute dairy products with plant-based alternatives like cashew cream and vegan cheese for a delicious vegan version.
How do I know when my Cheesy Root Veggie Gratin is done?
It’s ready when the veggies are tender, cheese is melted, and the top is golden brown.
Final Thoughts
This Cheesy Root Veggie Gratin is not only comforting but also versatile. You can customize it by adding seasonal vegetables or trying different cheese combinations. It’s perfect as a side dish or even as a main course alongside a salad. Don’t hesitate—give this recipe a try and enjoy its delightful flavors!
Cheesy Root Veggie Gratin
Indulge in the comfort of Cheesy Root Veggie Gratin, a delightful dish featuring layers of tender sweet potatoes, parsnips, and beets enveloped in a rich creamy sauce. Topped with a perfect blend of Parmesan and Gruyere cheeses, this gratin is not only visually stunning but also incredibly easy to make. The fresh thyme adds an aromatic touch that brightens up the savory flavors, making it ideal for family dinners or special occasions. With a blend of textures and tastes, this gratin is bound to impress everyone at your table, all while being a breeze to prepare.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: Serves about 6 people 1x
- Category: Side Dish
- Method: Baking
- Cuisine: Vegetarian
Ingredients
- 12 long sweet potatoes (peeled)
- 3 to 4 large parsnips (trimmed and peeled)
- 3 to 5 small beets (peeled)
- 1 tablespoon unsalted butter (softened)
- 1 1/4 cup heavy cream (divided; whole milk can be used instead)
- 4 ounces grated Parmesan cheese (divided)
- 1 tablespoon fresh thyme (minced; divided plus extra for garnish)
- 1 clove garlic (minced)
- 1 ounce shredded Gruyere cheese
- Salt and freshly ground black pepper (to taste)
Instructions
- Preheat your oven to 400°F and grease a 3-quart baking dish with softened butter.
- Thinly slice the sweet potatoes, parsnips, and beets using a mandoline for even slices.
- In separate bowls, coat each vegetable with cream, Parmesan cheese, thyme, salt, and pepper.
- Pour some cream into the bottom of the baking dish and layer the sliced vegetables in alternating rows.
- Finish layering with remaining seasoning and cover the dish with foil.
- Bake covered for 30 minutes until veggies are tender.
- Remove foil, sprinkle Gruyere on top, and bake uncovered for another 18-20 minutes until golden brown.
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 290
- Sugar: 8g
- Sodium: 400mg
- Fat: 20g
- Saturated Fat: 12g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 4g
- Protein: 6g
- Cholesterol: 45mg
