I can still remember the first time I made this Cheesy Root Vegetable Gratin. It was a chilly autumn evening, and I was craving something warm, comforting, and downright delicious. I had a fridge full of beautiful root vegetables – potatoes, carrots, parsnips, and onions – and I knew just the recipe to put them to use.

As I started prepping the ingredients, the aroma of garlic and thyme filled my kitchen. I carefully sliced the vegetables, making sure they were all evenly sized for even cooking. Then, I layered them into a baking dish, poured over the rich, creamy sauce, and topped it all off with a generous sprinkle of cheddar and Parmesan cheeses.

When that golden, bubbly gratin emerged from the oven, I could hardly contain my excitement. The flavors were out of this world – the tender, caramelized root veggies, the silky smooth sauce, and the melty, cheesy top. It was pure comfort food heaven. I couldn’t wait to dig in.

From that moment on, this Cheesy Root Vegetable Gratin recipe became a staple in my household. It’s the kind of dish that warms you from the inside out and leaves you feeling absolutely satisfied. And let me tell you, it’s about to become your new go-to as well.

Why This Cheesy Root Vegetable Gratin Recipe Will Become Your Go-To

The Secret Behind Perfect Cheesy Root Vegetable Gratin

This Cheesy Root Vegetable Gratin is special for a few key reasons. First, the combination of root vegetables – potatoes, carrots, parsnips, and onions – creates an incredible depth of flavor and texture. The natural sweetness of the carrots and parsnips perfectly balances the heartiness of the potatoes, while the onions add a savory, caramelized note.

But the true magic lies in the creamy, cheesy sauce. By using a blend of heavy cream, cheddar, and Parmesan, you end up with a luscious, velvety sauce that coats every nook and cranny of the vegetables. And the addition of fragrant dried thyme takes the flavor profile to the next level.

The key to success is in the preparation – slicing the vegetables evenly ensures they cook through perfectly. And the baking technique, which allows the cheese to melt and brown on top, results in a crispy, golden crust that’s simply irresistible.

Essential Ingredients You’ll Need

Let’s take a closer look at the key ingredients that make this Cheesy Root Vegetable Gratin so special:

  • 2 pounds mixed root vegetables (such as potatoes, carrots, parsnips, and onions), peeled and sliced – These root veggies form the foundation of the dish, providing a delightful mix of flavors and textures.
  • 2 cloves garlic, minced – Garlic is a must-have in any comforting, creamy dish like this. It adds depth and warmth to the overall flavor profile.
  • 2 cups heavy cream – The heavy cream is what gives the sauce its luscious, velvety texture. It coats the vegetables perfectly and creates that indulgent, rich experience.
  • 1 cup shredded cheddar cheese – Cheddar is the ideal cheese for this gratin, as it melts beautifully and provides that classic cheesy flavor.
  • 1/2 cup grated Parmesan cheese – The Parmesan adds a salty, nutty element that complements the other ingredients perfectly.
  • 1 teaspoon dried thyme – Thyme is the perfect herb to use here, as it pairs so well with the root vegetables and enhances the overall flavor.
  • Salt and pepper to taste – Simple seasonings that allow the other ingredients to shine.

Step-by-Step Cheesy Root Vegetable Gratin Instructions

Preparing Your Cheesy Root Vegetable Gratin

Prep time for this Cheesy Root Vegetable Gratin is just 15 minutes, and the cook time is 30 minutes, for a total time of 45 minutes. To get started, you’ll need a large baking dish or casserole dish, a sharp knife, and a cutting board.

1- Begin by peeling and slicing the root vegetables. Cut the potatoes, carrots, parsnips, and onions into evenly-sized, 1/4-inch thick slices. This will ensure they cook through at the same rate.
2- In a large bowl, combine the sliced vegetables, minced garlic, heavy cream, shredded cheddar, grated Parmesan, and dried thyme. Toss everything together until the vegetables are evenly coated.
3- Transfer the veggie mixture to the prepared baking dish, spreading it out in an even layer. Season with salt and pepper.
4- Bake the gratin in a preheated 375°F oven for 30 minutes, or until the vegetables are tender and the top is golden brown and bubbly.
5- Remove the gratin from the oven and let it rest for 5 minutes before serving. This allows the sauce to thicken up just a bit.
6- Scoop out generous portions of the Cheesy Root Vegetable Gratin and serve it hot. The tender, caramelized veggies, velvety sauce, and crispy, golden cheese topping make for one utterly delicious dish.

Pro Tips for Success

Here are a few expert tips to ensure your Cheesy Root Vegetable Gratin turns out perfectly every time:

  1. Use a variety of root vegetables for the best flavor and texture. The combination of potatoes, carrots, parsnips, and onions is key.
  2. Slice the vegetables evenly so they cook through at the same rate. Aim for 1/4-inch thick slices.
  3. Don’t be shy with the cheese – the more, the merrier! The cheddar and Parmesan create an incredible, gooey topping.
  4. Be generous with the thyme. This aromatic herb pairs so well with the root veggies and adds depth to the overall dish.

Serving and Storing Your Cheesy Root Vegetable Gratin

Perfect Pairings for Cheesy Root Vegetable Gratin

This Cheesy Root Vegetable Gratin is a true crowd-pleaser, making it the perfect main dish for any occasion. Since it serves 6 people, it’s ideal for a cozy family dinner or a casual gathering with friends.

For sides, I love to serve it with a fresh green salad, roasted Brussels sprouts, or crusty bread to soak up all that creamy, cheesy goodness. And for drinks, a crisp white wine or a rich, full-bodied red would both be fantastic pairings.

Storage and Make-Ahead Tips

Leftovers of this Cheesy Root Vegetable Gratin can be stored in the refrigerator for up to 4 days. Simply cover the dish tightly with foil or transfer portions to an airtight container. When ready to enjoy, reheat individual servings in the microwave or the oven until heated through.

You can also freeze this gratin for longer-term storage. Let it cool completely, then transfer to a freezer-safe container or wrap tightly in foil. It will keep in the freezer for up to 3 months. To reheat, thaw the gratin in the refrigerator overnight, then bake at 375°F until hot and bubbly.

For easy meal prep, you can assemble the gratin a day in advance and keep it refrigerated until ready to bake. This makes it a breeze to put together on a busy weeknight.

Variations and Dietary Adaptations for Cheesy Root Vegetable Gratin

Creative Cheesy Root Vegetable Gratin Variations

While the classic version of this Cheesy Root Vegetable Gratin is absolutely delicious, there are plenty of ways to mix things up.

For a seasonal twist, try using a combination of sweet potatoes and butternut squash instead of the traditional root veggies. Or, swap in earthy mushrooms or tangy goat cheese for some extra flavor.

You could also amp up the herb factor by adding fresh rosemary or sage, or experiment with different cheese blends like gruyère or fontina.

And for a heartier meal, you could even add in some cooked sausage or bacon.

Making Cheesy Root Vegetable Gratin Diet-Friendly

This Cheesy Root Vegetable Gratin can also be adapted to suit various dietary needs. For a gluten-free version, simply use gluten-free breadcrumbs or crushed crackers in place of the Parmesan cheese topping.

To make it vegan, swap the heavy cream for a thick, creamy plant-based milk like cashew or oat milk, and use shredded vegan cheddar and Parmesan alternatives. You may also want to add a sprinkle of nutritional yeast for that extra cheesy flavor.

And for a lower-carb spin, try using a mixture of cauliflower florets and zucchini slices instead of the starchier root veggies.

Frequently Asked Questions

Q: Can I use a different type of cheese instead of cheddar and Parmesan?
A: Absolutely! You can experiment with all sorts of cheese combinations. Some great options include gruyère, fontina, gouda, or even a blend of cheeses.

Q: How long does the Cheesy Root Vegetable Gratin take to prepare and cook?
A: This recipe has a total time of 45 minutes, with 15 minutes of prep time and 30 minutes of cook time.

Q: Can I make the Cheesy Root Vegetable Gratin ahead of time?
A: Yes, you can assemble the gratin in advance and keep it refrigerated until ready to bake. It will keep in the fridge for up to 2 days before baking.

Q: How many servings does this Cheesy Root Vegetable Gratin recipe make?
A: This recipe yields 6 servings.

Q: What should I do if the top of the gratin starts to brown too quickly?
A: If the top is browning too much before the vegetables are tender, simply cover the dish loosely with foil and continue baking until the vegetables are cooked through.

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Cheesy Root Vegetable Gratin

Cheesy Root Vegetable Gratin


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  • Author: Sofia Bennett
  • Total Time: 45
  • Yield: 6 servings
  • Diet: Vegetarian

Description

This Cheesy Root Vegetable Gratin is a comforting and delicious casserole that’s perfect for a cozy meal. Tender roasted root vegetables, like potatoes, carrots, and onions, are baked in a creamy, cheesy sauce for a satisfying and flavorful dish.


Ingredients

– 2 pounds mixed root vegetables (such as potatoes, carrots, parsnips, and onions), peeled and sliced

– 2 cloves garlic, minced

– 2 cups heavy cream

– 1 cup shredded cheddar cheese

– 1/2 cup grated Parmesan cheese

– 1 teaspoon dried thyme

– Salt and pepper to taste


Instructions

1. Preheat the oven to 375°F.

2. In a large bowl, toss the sliced root vegetables with the minced garlic, and season with salt and pepper.

3. Spread the seasoned vegetables in a 9×13-inch baking dish.

4. In a saucepan, heat the heavy cream over medium heat until just simmering. Remove from heat and stir in the cheddar and Parmesan cheeses until melted and combined.

5. Pour the cheese sauce over the root vegetables, making sure they are evenly coated.

6. Sprinkle the dried thyme over the top.

7. Bake for 30-40 minutes, or until the vegetables are tender and the top is golden brown.

8. Let the gratin cool for 5-10 minutes before serving.

Notes

This dish can be made ahead of time and reheated, or frozen for later use. Feel free to experiment with different types of root vegetables or cheese blends to suit your preferences.

  • Prep Time: 15
  • Cook Time: 30
  • Category: Vegetarian & Vegan Mains
  • Method: Baking
  • Cuisine: American

Conclusion

This Cheesy Root Vegetable Gratin is the ultimate comfort food dish – it’s rich, indulgent, and utterly delicious. The combination of tender, caramelized root veggies, a velvety cream sauce, and a crispy, golden cheese topping is simply irresistible.

I hope you’ll give this recipe a try and experience the magic for yourself. It’s sure to become a new family favorite, whether you’re serving it for a cozy weeknight dinner or a special occasion. Don’t be afraid to get creative with the variations, and let me know how it turns out for you in the comments below. Enjoy!