As the evening sun dips below the horizon, a comforting aroma fills the kitchen—nothing beats the allure of a bubbling Cheesy Root Vegetable Gratin. With its stunning layers of vibrant sweet potatoes, earthy beets, and sweet parsnips, this dish is more than just a side; it’s a celebration of the season’s finest offerings. Perfect for holiday gatherings, it’s not just vegetarian-friendly but also effortlessly make-ahead, letting you enjoy the festivities without the last-minute stress. Rich in flavor and beautifully presented, this gratin promises to be the star of your dinner table. Ready to turn your next meal into an unforgettable occasion? Let’s dive into this delightful recipe! Why is this gratin a crowd favorite? Comforting, Flavorful Layers: The Cheesy Root Vegetable Gratin brings together sweet potatoes, beets, and parsnips in a harmonious blend that’s hard to resist. Versatile Dish: Perfect as a holiday side or the main dish, you can easily pair it with roasted meats or serve it alongside a refreshing salad. Make-Ahead Convenience: Prepping this dish a day in advance means you can enjoy a stress-free gathering without sacrificing flavor or quality. Visual Appeal: Its stunning, colorful layers not only look impressive but also invite everyone to dig in! For more delicious ideas, consider trying my Cheesy Sausage Egg for breakfast or these scrumptious Cheesy Garlic Bread bites as an appetizer. Cheesy Root Vegetable Gratin Ingredients For the Gratin • Unsalted Butter – Essential for greasing the baking dish; olive oil can be used for a dairy-free adaptation. • Sweet Potatoes – Adds natural sweetness and hearty structure; approximately 1-2 long sweet potatoes, peeled and cut into 2-inch thick rounds. • Parsnips – Contributes a touch of sweetness and a pleasant earthy flavor; use 3-4 large parsnips, trimmed and peeled. • Beets – Imparts a vibrant color and earthy taste to the dish; select 3-5 small beets, peeled. • Heavy Cream – Provides richness and creaminess, crucial for achieving that indulgent gratin; a total of 14 tablespoons, divided. • Grated Parmesan – Bestows savory depth and helps bind the gratin; use 4 ounces, divided throughout. • Fresh Minced Thyme – Introduces fresh herbal notes to the dish; approximately 1 tablespoon, divided, with extra for garnish. • Garlic Clove – Enhances overall flavor with subtle pungency; include 1 clove, minced, for delicious depth. • Shredded Gruyère – Melts beautifully on top, creating a creamy, golden finish; use about 1 ounce for that perfect topping. • Salt and Pepper – Essential for seasoning each layer; add to taste to elevate the flavors of the gratin. This Cheesy Root Vegetable Gratin is sure to be a satisfying addition to your holiday table, effortlessly blending beautiful flavors and textures! Step‑by‑Step Instructions for Cheesy Root Vegetable Gratin Step 1: Preheat and Prepare Begin by preheating your oven to 400°F (200°C). While the oven warms up, grease a 3-quart baking dish generously with unsalted butter, ensuring every corner is coated. This will prevent the Cheesy Root Vegetable Gratin from sticking and allow for easy serving later. Set the prepared dish aside as the butter melts into a perfect non-stick surface. Step 2: Slice the Vegetables Next, slice sweet potatoes, parsnips, and beets into very thin rounds using a mandoline for the best results. Aim for even thickness to ensure uniform cooking. Keep each type of vegetable in separate bowls to maintain their distinct colors and flavors. You’ll appreciate the vibrant contrast these root vegetables bring to your Cheesy Root Vegetable Gratin. Step 3: Mix Cream and Seasonings In separate bowls, mix the sliced sweet potatoes and parsnips with 4 tablespoons of heavy cream, adding ½ ounce of grated Parmesan and 1 teaspoon of fresh thyme. For the beets, use 2 tablespoons of cream, ½ ounce of Parmesan, and season with salt and pepper. Toss each mixture thoroughly to coat the vegetables, allowing them to absorb the creamy goodness. Step 4: Prepare the Baking Dish Pour ¼ cup of heavy cream into the bottom of the greased baking dish, spreading it evenly. Next, sprinkle in ½ ounce of grated Parmesan and add the minced garlic. This flavorful base will enhance the richness of the Cheesy Root Vegetable Gratin. The aroma of garlic will set a delightful tone for the dish to come. Step 5: Layer the Vegetables Now, it’s time to create the stunning layers of your gratin. Start by arranging the sweet potato slices standing on their sides in the baking dish, followed by a layer of parsnips, and then the vibrant beet slices. Repeat this layering process until all the vegetables are used up, forming beautifully colored rows that make the dish truly visually appealing. Step 6: Season and Cover Once your layers are complete, season the top layer generously with salt and pepper, enhancing each bite with flavor. Sprinkle the remaining grated Parmesan over the top, creating a delicious crust. Cover the dish tightly with aluminum foil and bake in the preheated oven for 30 minutes, until the vegetables are tender and easily pierced with a fork. Step 7: Add Gruyère and Finish Baking After 30 minutes, carefully remove the foil, revealing the bubbling gratin beneath. Sprinkle the shredded Gruyère cheese evenly over the top and return it to the oven uncovered. Bake for an additional 18-20 minutes, or until the cheese is melted and golden brown, creating a luscious topping. The Cheesy Root Vegetable Gratin is now ready to impress your dinner guests! Step 8: Garnish and Serve To add a touch of freshness, remove the gratin from the oven and sprinkle additional fresh thyme leaves on top. Allow it to cool slightly before serving. The stunning layers of your Cheesy Root Vegetable Gratin will impress anyone at the table, making it a perfect centerpiece for your holiday feast. Make Ahead Options These Cheesy Root Vegetable Gratin are perfect for busy home cooks looking to simplify their meal prep! You can assemble the whole dish up to 24 hours in advance by layering the sliced vegetables and creamy mixture in the baking dish, then covering tightly with foil. To maintain the quality, be sure to refrigerate it right after assembling to keep the veggies fresh and prevent browning. When you’re ready to bake, simply add an additional 5-7 minutes to the cooking time if it’s been chilled. Enjoy a comforting and flavorful side without the last-minute hassle, allowing you to savor every moment of your festive gathering! Variations & Substitutions for Cheesy Root Vegetable Gratin Feel free to personalize this delicious dish with some creative twists that will elevate its flavors and textures! Root Swap: Try using carrots or turnips instead of beets for a different flavor profile. Carrots add a slight sweetness while turnips bring a crisp texture! Dairy-Free Delight: For a non-dairy version, substitute heavy cream with coconut cream and use a dairy-free cheese alternative. The coconut will add a touch of tropical sweetness to your gratin. Herb Changes: Experiment with fresh herbs like rosemary or sage to introduce new layers of flavor. Both herbs complement root vegetables beautifully, providing a fragrant twist. Add Some Spice: If you like some heat, add a pinch of red pepper flakes or a dash of cayenne pepper to the cream mixture. It’ll give your gratin a surprising kick with each bite! Sautéed Alliums: Consider adding sautéed onions or shallots for an extra layer of flavor. Their sweetness will caramelize while baking, adding depth to the dish’s complexity. Cheese Variety: Mix up the cheese by blending Gruyère with other cheeses such as cheddar or gouda. Each brings its unique flavor, and the melted combination will be irresistibly creamy. Crunchy Topping: For added texture, sprinkle some panko breadcrumbs mixed with a little olive oil on top before the final bake. This will create a lovely crispy layer that contrasts with the creaminess below. Zest it Up: Incorporate a teaspoon of lemon zest or orange zest into the cream mixture for a burst of freshness. Citrus adds an exciting brightness to the rich flavors of the gratin. For more cheesy inspirations, you might also enjoy these Cheesy Sausage Egg wraps for breakfast or savor some delightful Cheesy Garlic Bread as a fun appetizer! How to Store and Freeze Cheesy Root Vegetable Gratin Fridge: Store leftover Cheesy Root Vegetable Gratin in an airtight container for up to 3 days. Reheat in the oven at 350°F until warmed through. Freezer: For longer storage, freeze portions wrapped tightly in foil or in freezer-safe containers for up to 2 months. Thaw in the fridge overnight before reheating. Make-Ahead: You can prepare the gratin a day in advance and keep it in the refrigerator, covered with foil. Just remember to add an extra 5-7 minutes to your baking time if it’s chilled. Reheating: When ready to serve, reheat in the oven until bubbling and golden on top, ensuring the layered vegetables remain tender and flavorful. Tips for the Best Cheesy Root Vegetable Gratin Preparation is Key: Take your time to slice the vegetables evenly; this ensures they cook uniformly and all layers are perfectly tender in your Cheesy Root Vegetable Gratin. Layering Trick: Alternate the colored layers (sweet potatoes, parsnips, beets) to create a visually appealing dish that highlights the vibrant flavors of each vegetable. Cream Matters: Adjust cream measurements based on vegetable consistency; ensuring the right amount keeps the gratin rich and moist, preventing dryness in the final bake. Avoid Beet Bleeding: Lightly coat sliced beets with cream before layering to minimize color bleeding, maintaining the visual appeal of your Cheesy Root Vegetable Gratin. Rest Before Serving: Let the gratin sit for a few minutes after baking; this allows it to set, making it easier to slice and serve while also enhancing flavors. What to Serve with Cheesy Root Vegetable Gratin As the comforting aromas of baked root vegetables fill the air, think about how to elevate this dish into a complete experience. Roasted Chicken: The savory and slightly crispy skin pairs beautifully with the richness of the gratin, creating a well-rounded meal. Crispy Brussels Sprouts: Their crunchy texture offers a delightful contrast, while their slightly bitter notes enhance the sweetness of the gratin’s vegetables. Fresh Green Salad: A zesty lemon vinaigrette on crisp greens brightens the palate, balancing the creaminess of the Cheesy Root Vegetable Gratin. Garlic Bread: Warm, crusty slices of garlic bread provide a fantastic vehicle for scooping up the gratin, making each bite deliciously satisfying. Red Wine: A medium-bodied red, like Pinot Noir, complements the earthy flavors of the root vegetables while enhancing the overall dining experience. Pumpkin Pie: For dessert, this classic holiday treat rounds out the meal perfectly with its spiced sweetness, echoing the fall flavors presented in the gratin. These pairing suggestions will help you craft a memorable meal that will satisfy everyone at your table! Cheesy Root Vegetable Gratin Recipe FAQs How do I choose ripe root vegetables for the gratin? Absolutely! Look for sweet potatoes that are firm and free from dark spots or blemishes. For parsnips, choose those that are smooth and heavy for their size. Beets should be small to medium-sized without soft spots or wrinkles; vibrant color indicates freshness. How should I store leftover Cheesy Root Vegetable Gratin? Store any leftover gratin in an airtight container in the refrigerator for up to 3 days. Make sure to let it cool completely before sealing to prevent moisture buildup. When you’re ready to enjoy it again, simply reheat your portion in the oven at 350°F until it’s warmed through—usually about 15-20 minutes will do. Can I freeze Cheesy Root Vegetable Gratin? Yes, you can! It freezes beautifully. To do this, wrap your portions tightly in foil or place them in freezer-safe containers. It can be stored for up to 2 months. When you’re ready to serve, thaw it in the refrigerator overnight before reheating in the oven. Bake at 350°F until heated through and bubbly, about 25-30 minutes. What if my gratin turns out watery? Don’t worry, it can happen! If your gratin is watery, it might be due to excess moisture from the vegetables or too much cream. To troubleshoot: next time, ensure you slice your vegetables evenly and try reducing the cream slightly or layering them with breadcrumbs for better absorption. Additionally, you can bake it a bit longer uncovered to help evaporate excess moisture. Is this gratin safe for my vegetarian guests? Absolutely! The Cheesy Root Vegetable Gratin is vegetarian-friendly, with no meat products included. However, if you have guests with dairy allergies, you can substitute heavy cream with coconut cream and use a dairy-free cheese alternative for a delicious non-dairy adaptation. Can I prepare the gratin in advance? Definitely! You can assemble the Cheesy Root Vegetable Gratin the day before. Just cover it tightly with foil and store in the refrigerator. When you’re ready to bake it, add an extra 5-7 minutes to the cooking time if it’s cold from the fridge. This pre-preparation is a fantastic way to reduce stress during holiday gatherings! Cheesy Root Vegetable Gratin: A Cozy Comfort Dish You’ll Love Indulge in this Cheesy Root Vegetable Gratin, a delightful blend of sweet potatoes, beets, and parsnips, perfect for holiday gatherings. Print Recipe Pin Recipe Prep Time 30 minutes minsCook Time 50 minutes minsResting Time 5 minutes minsTotal Time 1 hour hr 25 minutes mins Servings: 6 servingsCourse: CasseroleCuisine: VegetarianCalories: 350 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Gratin4 tablespoons Unsalted Butter for greasing the baking dish2 large Sweet Potatoes peeled and cut into 2-inch thick rounds4 large Parsnips trimmed and peeled5 small Beets peeled14 tablespoons Heavy Cream divided4 ounces Grated Parmesan divided throughout1 tablespoon Fresh Minced Thyme divided, with extra for garnish1 clove Garlic minced1 ounce Shredded Gruyère for toppingSalt and Pepper to taste Equipment 3-quart baking dishmandoline Method Preparation StepsPreheat your oven to 400°F (200°C) and grease a 3-quart baking dish with unsalted butter.Slice sweet potatoes, parsnips, and beets into very thin rounds using a mandoline.Mix sliced sweet potatoes and parsnips with 4 tablespoons of heavy cream, ½ ounce of grated Parmesan, and 1 teaspoon of fresh thyme in separate bowls. For beets, use 2 tablespoons of cream and ½ ounce of Parmesan. Season with salt and pepper.Pour ¼ cup of heavy cream into the greased baking dish, sprinkle in ½ ounce of grated Parmesan and add the minced garlic.Layer sweet potato slices, followed by parsnips and beet slices, repeating the process until all vegetables are used.Season the top layer with salt and pepper, add the remaining grated Parmesan, cover with aluminum foil, and bake for 30 minutes.Remove the foil, add the shredded Gruyère cheese and bake uncovered for another 18-20 minutes until melted and golden.Garnish with additional fresh thyme leaves before serving. Nutrition Serving: 1servingCalories: 350kcalCarbohydrates: 40gProtein: 8gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 40mgSodium: 300mgPotassium: 600mgFiber: 6gSugar: 10gVitamin A: 15000IUVitamin C: 20mgCalcium: 200mgIron: 1.5mg NotesFor best results, allow the gratin to sit for a few minutes after baking before slicing and serving. Tried this recipe?Let us know how it was!