Sweet Potato Kale Gratin is a must-try comfort dish! This delightful recipe brings together the sweetness of tender sweet potatoes and the nutritious crunch of kale, layered in a creamy base and topped with gooey Gruyère cheese. Perfect for cozy dinners or holiday gatherings, this dish is sure to impress family and friends alike. Its unique combination of flavors and textures will make it a standout at your table.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Gratin
- How to Make Sweet Potato Kale Gratin is a must-try comfort dish!
- Step 1: Preheat the Oven
- Step 2: Prepare Sweet Potatoes
- Step 3: Sauté the Kale
- Step 4: Grease the Baking Dish
- Step 5: Layer Ingredients
- Step 6: Bake the Gratin
- Step 7: Serve
- How to Serve Sweet Potato Kale Gratin is a must-try comfort dish!
- Accompany with a Fresh Salad
- Pair with Roasted Vegetables
- Serve with Crusty Bread
- Top with Fresh Herbs
- Include a Protein Option
- How to Perfect Sweet Potato Kale Gratin is a must-try comfort dish!
- Best Side Dishes for Sweet Potato Kale Gratin is a must-try comfort dish!
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Sweet Potato Kale Gratin is a must-try comfort dish!
- Reheating Sweet Potato Kale Gratin is a must-try comfort dish!
- Frequently Asked Questions
- How do I make my Sweet Potato Kale Gratin extra creamy?
- Can I use other greens instead of kale?
- Is Sweet Potato Kale Gratin suitable for meal prepping?
- What should I serve with Sweet Potato Kale Gratin?
- Can I make this gratin dairy-free?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Easy to Make: With simple steps and accessible ingredients, this gratin comes together effortlessly.
- Flavorful Layers: The blend of sweet potatoes and sautéed kale creates a deliciously rich taste that everyone will enjoy.
- Versatile Dish: Great as a main course or side, Sweet Potato Kale Gratin fits well with various menus and occasions.
- Healthy Comfort Food: Packed with nutrients from sweet potatoes and kale, this dish offers a satisfying yet wholesome option.
- Make Ahead Friendly: Prepare it in advance and bake when ready for a stress-free meal.
Tools and Preparation
To create your Sweet Potato Kale Gratin, you’ll need some essential kitchen tools. These will help ensure the cooking process goes smoothly.
Essential Tools and Equipment
- Baking dish
- Skillet
- Knife
- Cutting board
- Mixing bowl
Importance of Each Tool
- Baking dish: A sturdy baking dish ensures even cooking and allows for beautiful layering of ingredients.
- Skillet: Ideal for sautéing the kale, helping to enhance its flavor before adding it to the gratin.
- Knife: A sharp knife makes slicing sweet potatoes quick and easy, ensuring uniform pieces for even cooking.

Ingredients
Sweet Potato Kale Gratin is a delicious and comforting dish that combines the natural sweetness of sweet potatoes with the earthy flavor of kale, featuring layers of thinly sliced sweet potatoes, sautéed kale, and a creamy mixture topped with melted Gruyère cheese.
For the Gratin
- 2 large sweet potatoes (about 1.5 lbs or 680 g), peeled and thinly sliced
- 4 cups kale, stems removed and chopped (about 1 bunch)
- 1 cup heavy cream (240 ml)
- 3 cloves garlic, minced
- 1 cup Gruyère cheese, grated (about 100 g)
- 1/4 teaspoon ground nutmeg
- Salt, to taste
- Black pepper, to taste
- 1 tablespoon olive oil (for greasing the baking dish)
How to Make Sweet Potato Kale Gratin is a must-try comfort dish!
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Step 2: Prepare Sweet Potatoes
- Peel the sweet potatoes.
- Thinly slice them using a knife or mandoline for even pieces.
Step 3: Sauté the Kale
- Wash and chop the kale into bite-sized pieces.
- Heat a skillet over medium heat; add a splash of water or olive oil.
- Sauté the kale for 5-7 minutes until wilted and tender.
Step 4: Grease the Baking Dish
- Take your greased baking dish.
- Lightly coat it with olive oil to prevent sticking.
Step 5: Layer Ingredients
- Start by layering sweet potato slices at the bottom of the baking dish.
- Add sautéed kale on top followed by some cream mixture.
- Sprinkle Gruyère cheese over each layer.
- Repeat these layers until all ingredients are used up.
Step 6: Bake the Gratin
- Cover the baking dish with aluminum foil.
- Bake for 30 minutes in preheated oven.
- Remove foil; continue baking for an additional 20-25 minutes until golden brown and tender.
Step 7: Serve
Let cool for about 10 minutes before serving warm as an irresistible side or main course!
How to Serve Sweet Potato Kale Gratin is a must-try comfort dish!
Sweet Potato Kale Gratin is a versatile and comforting dish that can be enjoyed in various ways. Whether you’re serving it at a family dinner or a casual gathering, here are some delightful suggestions to elevate your meal.
Accompany with a Fresh Salad
- A simple mixed green salad with lemon vinaigrette adds brightness and balances the richness of the gratin.
Pair with Roasted Vegetables
- Roasted seasonal vegetables, like carrots and Brussels sprouts, provide added texture and flavor, complementing the sweet potatoes and kale beautifully.
Serve with Crusty Bread
- A loaf of warm crusty bread is perfect for soaking up the creamy sauce, making each bite more satisfying.
Top with Fresh Herbs
- Chopped parsley or chives sprinkled on top not only adds color but also enhances the dish’s flavor profile.
Include a Protein Option
- Grilled chicken or turkey cutlets can make this meal more substantial, perfect for those needing an extra boost of protein.
How to Perfect Sweet Potato Kale Gratin is a must-try comfort dish!
To ensure your Sweet Potato Kale Gratin turns out perfectly every time, keep these tips in mind.
- Use uniform slices: Slice sweet potatoes evenly for consistent cooking and texture throughout the dish.
- Don’t skip the seasoning: Season each layer generously with salt and pepper to enhance flavors.
- Choose quality cheese: Aged Gruyère offers deeper flavor; feel free to experiment with different cheeses for variety.
- Let it rest: Allowing the gratin to sit for 10 minutes before serving helps it set, making slicing easier.
- Cover while baking: Covering the dish with foil during initial baking prevents over-browning while ensuring everything cooks through.
- Experiment with greens: Feel free to mix in other greens like spinach or Swiss chard for added nutrition and flavor.
Best Side Dishes for Sweet Potato Kale Gratin is a must-try comfort dish!
Pairing side dishes with your Sweet Potato Kale Gratin can enhance your meal. Here are some excellent options:
- Garlic Green Beans
Sautéed green beans tossed in garlic butter add freshness and crunch to your plate. - Quinoa Salad
A light quinoa salad with cucumbers, tomatoes, and a lemon dressing provides protein and fiber. - Creamy Coleslaw
A tangy coleslaw made from cabbage and carrots offers a crunchy contrast to the creamy gratin. - Mashed Cauliflower
A lower-carb alternative to mashed potatoes, this creamy side pairs well without overshadowing the gratin’s flavors. - Herbed Couscous
Fluffy couscous with herbs makes for an easy-to-make side that complements the textures of the gratin nicely. - Roasted Beet Salad
Earthy roasted beets tossed with goat cheese create a colorful, flavorful addition to your table.
Common Mistakes to Avoid
Avoiding common mistakes can make your Sweet Potato Kale Gratin even better.
- Skipping the seasoning: Failing to season your layers can result in bland flavors. Always add a pinch of salt and pepper to each layer for enhanced taste.
- Overcrowding the dish: If you pack too much into the baking dish, it may not cook evenly. Ensure you have enough space for heat to circulate between the layers.
- Not waiting to cool: Cutting into the gratin immediately after baking can cause it to fall apart. Let it cool for at least 10 minutes for better slicing.
- Using too little cream: A creamy texture is key to a great gratin. Make sure you use enough cream in each layer to achieve that rich consistency.
- Ignoring the layering technique: Simply mixing everything together can lead to uneven cooking. Layer sweet potatoes and kale properly for a beautiful presentation and consistent flavor.
- Rushing the cooking time: Not baking long enough or at too high a temperature can prevent the gratin from becoming tender and golden. Follow recommended times closely.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Sweet Potato Kale Gratin in an airtight container.
- It will keep well in the refrigerator for up to 3 days.
Freezing Sweet Potato Kale Gratin is a must-try comfort dish!
- For longer storage, freeze portions in freezer-safe containers or bags.
- It can be frozen for up to 3 months; just ensure it’s completely cooled before freezing.
Reheating Sweet Potato Kale Gratin is a must-try comfort dish!
- Oven: Preheat your oven to 350°F (175°C). Cover with foil and bake for about 20-25 minutes until heated through.
- Microwave: Place a portion on a microwave-safe plate and cover. Heat on medium power for about 2-3 minutes, checking halfway through.
- Stovetop: Heat in a skillet over low heat with a splash of cream or broth, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some common questions about making Sweet Potato Kale Gratin.
How do I make my Sweet Potato Kale Gratin extra creamy?
To enhance creaminess, increase the amount of heavy cream used between layers or add some cream cheese for richness.
Can I use other greens instead of kale?
Yes! Spinach or Swiss chard are great alternatives that will work beautifully in this gratin recipe.
Is Sweet Potato Kale Gratin suitable for meal prepping?
Absolutely! This dish keeps well in the fridge and reheats nicely, making it perfect for meal prep.
What should I serve with Sweet Potato Kale Gratin?
This dish pairs well with a simple green salad or roasted chicken for a complete meal.
Can I make this gratin dairy-free?
You can substitute heavy cream with coconut milk or any plant-based cream alternative, and use vegan cheese if you prefer.
Final Thoughts
Sweet Potato Kale Gratin is a must-try comfort dish that combines nutritious ingredients into a delicious meal. Its versatility allows customization based on your preferences—feel free to experiment with different vegetables or cheeses. Try this comforting recipe today!
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Sweet Potato Kale Gratin
- Total Time: 1 hour 15 minutes
- Yield: Serves approximately 6 people 1x
Description
Sweet Potato Kale Gratin is an irresistible comfort dish that perfectly balances the natural sweetness of tender sweet potatoes with the nutritious crunch of sautéed kale. Layered in a rich, creamy base and topped with melted Gruyère cheese, this gratin is ideal for cozy dinners or festive gatherings. With its unique blend of flavors and textures, it’s sure to be a crowd-pleaser at your table. Easy to prepare and make ahead, this delightful dish offers a wholesome option that feels indulgent without compromising on nutrition.
Ingredients
- 2 large sweet potatoes (about 1.5 lbs), peeled and thinly sliced
- 4 cups kale, stems removed and chopped
- 1 cup heavy cream
- 3 cloves garlic, minced
- 1 cup Gruyère cheese, grated
- 1/4 teaspoon ground nutmeg
- Salt, to taste
- Black pepper, to taste
- 1 tablespoon olive oil (for greasing)
Instructions
- Preheat oven to 375°F (190°C).
- Peel and thinly slice the sweet potatoes using a knife or mandoline.
- Sauté chopped kale in a skillet over medium heat for 5-7 minutes until wilted.
- Grease a baking dish with olive oil.
- Layer sweet potato slices at the bottom of the dish, followed by sautéed kale, cream mixture, and Gruyère cheese. Repeat layers until all ingredients are used.
- Cover with foil and bake for 30 minutes; remove foil and bake for an additional 20-25 minutes until golden brown and tender.
- Let cool for about 10 minutes before serving.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Category: Main Course
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (240g)
- Calories: 300
- Sugar: 6g
- Sodium: 450mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 5g
- Protein: 7g
- Cholesterol: 40mg





