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    Home > Recipes > Easy recipes

    Keto Brussels Sprouts Gratin

    December 10, 2023 by bobbiskozykitchen Leave a Comment

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    Close up of keto brussels sprouts gratin topped with keto bread crumbs in a white casserole dish.

    This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases. Doing so allows me to create more unique content and recipes for you.

    Indulge in the irresistible with our Keto Brussels Sprouts Gratin—a cheesy symphony of perfectly roasted sprouts and creamy goodness. This low-carb delight, crowned with golden breadcrumbs, is the perfect low-carb side for festive holiday feasts or cozy weeknight family dinners. Elevate your dining experience with every savory bite!

    Keto brussels sprouts gratin in a white casserole dish topped with melted cheese and crispy keto bread crumbs.

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    Cheesy Bliss: Keto Brussels Sprouts Gratin for Holiday Delight!
    🧀🌿

    Welcome to a new holiday favorite—Keto Brussels Sprouts Gratin! When I set out to create a unique side dish for the festive season, I couldn't think of a better combination than the beloved Brussels sprouts and a generous dose of cheese. Knowing how much my family adores both, I envisioned a dish that would not only cater to our low-carb lifestyle but also satisfy our taste buds.

    The result? A mouthwatering Brussels Sprouts Gratin that's destined to become a star at your holiday table or any weeknight family dinner. This recipe combines the earthy flavor of Brussels sprouts with a rich and creamy cheese sauce, elevated by the irresistible crunch of keto breadcrumbs on top. It's a delightful blend of textures and flavors that even non-keto enthusiasts can't resist.

    The inspiration behind this creation was simple—finding a side dish that strikes the perfect balance between comfort and sophistication. Brussels sprouts are a staple in our household, and I wanted to transform them into something extraordinary for the holiday feast.

    To tempt everyone's palate, I added a layer of keto breadcrumbs for that golden, crispy finish. The response was overwhelming; it quickly became a monthly favorite in our rotation. Now, I'm excited to share this recipe with you, hoping it brings joy and flavor to your celebrations.

    Indulge in the cheesy goodness and vibrant taste of Keto Brussels Sprouts Gratin—a side dish that's sure to elevate any meal, whether it's a special holiday gathering or a cozy family dinner. Enjoy the holiday season with this delectable addition to your low-carb repertoire! 🌟

    Share your kitchen creations with us on Instagram using #BobbisKozyKitchen for a chance to be featured in our newsletter! 📸

    In This Post
    • 🥘Keto Brussels Sprouts Gratin Ingredients
    • 🔪Keto Brussels Sprouts Gratin Instructions
    • Substitutions
    • 📖Variations
    • 🍽Equipment
    • Storage
    • 💭Top tip
    • FAQ about Keto Brussels Sprouts Gratin
    • Related Recipes
    • Pairing
    • Keto Brussels Sprouts Gratin
    • Food safety

    🥘Keto Brussels Sprouts Gratin Ingredients

    These are the ingredients necessary to make Keto Brussels Sprouts Gratin.

    Overhead view of the ingredients needed to make keto brussels sprouts gratin on a white counter.
    • Brussels Sprouts - Choose firm, compact Brussels sprouts with bright green, unblemished leaves. Smaller sprouts tend to be sweeter, while larger ones can be milder in flavor.
    • Gruyere Cheese - I prefer Gruyere's more assertive nutty flavor for this recipe but you can use Swiss if you prefer or cannot find Gruyere.
    • Keto Breadcrumbs - Please see the notes as to how to make keto breadcrumbs.

    A detailed list with measurements and instructions can be found on the printable recipe card at the bottom of the page.

    🔪Keto Brussels Sprouts Gratin Instructions

    This is a basic breakdown of the steps involved in making Keto Brussels Sprouts Gratin. You will find the full directions in the recipe card at the bottom of the post.

    Overhead view of halved brussels sprouts tossed with olive oil and salt and pepper in a white casserole dish on a white counter.

    Butter a cast iron skillet or a small casserole dish. Add the Brussels sprouts and spray with olive oil and then season with salt and pepper.

    Overhead view of a cast iron skillet with heavy cream, garlic, cream cheese, Parmesan cheese, Gruyere cheese, and fresh thyme.

    Add the thyme, salt, pepper, parmesan cheese, and 1 cup of shredded cheese and stir until the cheese is melted and incorporated into the sauce.

    Overhead view of keto brussels sprouts gratin in a casserole dish. There is a measuring cup frull of keto bread crumbs and another with shredded Gruyere cheese beside the casserole dish.

    Pour the cheese sauce over the Brussels sprouts.

    Overhead view of keto brussels sprouts gratin in a white casserole dish topped with shredded cheese and keto bread crumbs, before it goes into the oven to cook.

    Top with the remaining shredded cheese and breadcrumbs.

    Helpful Hint: 💡: When preparing the keto breadcrumbs, ensure your keto bread is toasted to medium for optimal flavor and texture. It should be dry but not burnt.

    Substitutions

    • Cheese - If you prefer you can experiment with different cheese varieties to customize the flavor. Try a blend of sharp cheddar and Gruyère for added depth, or use Swiss cheese for a milder taste.
    • Vegan - You can substitute coconut milk and plant-based cheeses to make this a vegan-friendly dish.
    • Breadcrumbs - You can substitute the keto breadcrumbs with crushed pork rinds if you do not have any keto bread.

    📖Variations

    • Nutty Twist - Add a delightful nutty flavor by incorporating chopped toasted almonds or hazelnuts into the breadcrumb topping.
    • Spicy Kick - For those who enjoy a bit of heat, incorporate crushed red pepper flakes into the garlic-butter sauce or sprinkle them over the gratin before baking.
    • Protein Boost - Integrate cooked and crumbled sausage or diced cooked chicken to turn this side dish into a complete, protein-packed meal.

    🍽Equipment

    This is the equipment you will need to make Keto Brussels Sprouts Gratin.

    • 2-quart casserole dish
    • large cast iron skillet
    • measuring cups and spoons
    • tongs
    • wooden spoon
    • whisk

    Storage

    Refrigerator: Store any leftover Keto Brussels Sprouts Gratin in an airtight container in the refrigerator for up to 3-4 days. Reheat in the oven or microwave until warmed through.

    Freezing: While Brussels sprouts can lose some of their texture when frozen, you can freeze the gratin for later consumption. Place individual servings in freezer-safe containers, separating layers with parchment paper. Label with the date and store for up to 2-3 months. To reheat, thaw overnight in the refrigerator and warm in the oven to help retain the texture.

    Note: Keep in mind that the cream-based sauce may undergo texture changes upon thawing, so the reheated dish might not be as creamy as the freshly made version.

    💭Top tip

    For a festive touch, consider adding a sprinkle of fresh thyme leaves as a garnish when serving this Keto Brussels Sprouts Gratin. It not only enhances the visual appeal but also complements the dish's flavors beautifully.

    Side view of keto brussels sprouts gratin in a white casserole dish with a black serving spoon holding a spoonful of the gratin above the dish.

    FAQ about Keto Brussels Sprouts Gratin

    Can I make this Brussels Sprouts Gratin ahead of time for a holiday meal?

    Absolutely! Prepare the Brussels sprouts and the cream sauce in advance. Assemble the gratin, cover, and refrigerate. Before serving, add the topping and bake for a delicious, stress-free side dish.

    What can I substitute for keto breadcrumbs?

    You can substitute crushed pork rinds for the keto breadcrumbs. They provide a similar texture while keeping the dish low-carb.

    How do I prevent the Brussels sprouts from becoming too mushy?

    To maintain a slight crispness, avoid overcooking the Brussels sprouts during the initial roasting. Additionally, choose fresh, firm Brussels sprouts and monitor their cooking time closely.

    Overhead view of keto brussels sprouts gratin on a white plate with a grilled pork chop. Beside the plate is the white casserole dish with the remaining gratin in it.

    Related Recipes

    Looking for other recipes like this? Try these:

    • Turnips au Gratin
    • Cauliflower au Gratin
    • Loaded Cauliflower Casserole
    • Cheesy Bacon Ranch Brussels Sprouts
    • White Wine Braised Brussels Sprouts
    • Roasted Brussels Sprouts with Garlic Herb Breadcrumbs

    Pairing

    These are my favorite dishes to serve with Keto Brussels Sprouts Gratin:

    • Boneless Rib Roast with Roasted Garlic and Herbs
    • Maple Mustard Turkey Breast
    • Keto Apricot Bourbon Glazed Ham
    • Keto Bacon Wrapped Honey Mustard Pork Loin
    • Keto Beef Wellington
    • Baked Salmon with Dill Sauce
    Keto brussels sprouts gratin in a white casserole dish with a black serving spoon holding a spoonful over the dish.

    Keto Brussels Sprouts Gratin

    Indulge in the irresistible with our Keto Brussels Sprouts Gratin—a cheesy symphony of perfectly roasted sprouts and creamy goodness. This low-carb delight, crowned with golden breadcrumbs, is the perfect low carb side for festive holiday feasts or cozy weeknight family dinners.
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    Prep Time 15 minutes mins
    Cook Time 40 minutes mins
    Course Side Dish
    Cuisine American
    Servings 6
    Calories 394 kcal

    Equipment

    • 2 quart casserole dish
    • large cast iron skillet
    • measuring cups and spoons
    • tongs
    • Wooden Spoon
    • Whisk

    Ingredients
      

    • 1 lb Brussels sprouts trimmed of outer leaves and sliced in half
    • pink salt to taste
    • Freshly cracked black pepper to taste
    • Olive oil spray
    • 1 tbsp butter
    • 5 cloves garlic minced
    • 1 cup heavy cream
    • 2 ounces cream cheese cubed
    • 1 tsp fresh thyme leave chopped (or 1 tbsp dried, crushed)
    • 1 cup freshly grated Parmesan cheese
    • 5 ounces Gruyère cheese about 1 1/3 cups, shredded and divided (can sub Swiss or white cheddar)
    • 1/2 cup keto breadcrumbs (can substitute ground pork rinds) *See Notes
    Get Recipe Ingredients

    Instructions
     

    • Preheat oven to 400 degrees F.
    • Butter a cast iron skillet or a small casserole dish.
    • Add the Brussels sprouts and season with salt and pepper. Spray olive oil over the Brussels sprouts and place in the lower third of the oven.
    • Bake for 15 minutes, toss and bake an additional 10 minutes.
    • Meanwhile, heat a medium skillet over medium heat. Add butter and let it melt, add the garlic and cook until fragrant, about 1 to 2 minutes.
    • Add the heavy cream and cream cheese and whisk until the cream cheese is incorporated into the heavy cream.
    • Cook over medium-low heat for about 4 minutes, stirring, until the sauce thickens.
    • Add the thyme, salt, pepper, parmesan cheese, and 1 cup of shredded cheese and stir until the cheese is melted and incorporated into the sauce.
    • Pour over the Brussels sprouts, and top with the remaining shredded cheese and breadcrumbs.
    • Bake for 15 minutes until the top is lightly browned and bubbly.

    Notes

    To make keto breadcrumbs cut the crust off of 2 to 3 slices of keto bread and toast until medium-dark. You want it dry but not burnt.
    When the toast cools tear it into pieces and pulse in a food processor until you have panko-like breadcrumbs.

    Disclaimer

    Most of my recipes are low-carb (or keto) and gluten-free, but some are not. Please verify that a recipe fits your needs before using it. Recommended and linked products are not guaranteed to be gluten-free. Recipes may contain errors, so please use your common sense when following them. Nutritional information is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs will not be included as it has a glycemic index of 0 (meaning it does not spike blood sugar) and it’s not metabolized. Net carbs are the total carbs minus fiber.

    Nutrition

    Calories: 394kcalCarbohydrates: 14gProtein: 18gFat: 32gSaturated Fat: 19gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gTrans Fat: 0.1gCholesterol: 93mgSodium: 445mgPotassium: 389mgFiber: 7gSugar: 3gVitamin A: 1681IUVitamin C: 66mgCalcium: 481mgIron: 1mg
    Keyword 10 ingredients or less, american, brussels sprouts, cheese, Christmas, Easter, easy, easy recipes, Holiday, Keto, keto recipes, Low Carb, mother's day, side dish, Thanksgiving, vegetarian
    Tried this recipe?Let us know how it was!

    Food safety

    • Don't leave food sitting out at room temperature for extended periods
    • Never leave cooking food unattended
    • Use oils with a high smoking point to avoid harmful compounds
    • Always have good ventilation when using a gas stove

    See more guidelines at USDA.gov.

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    Welcome! It is so nice to meet you. My name is Bobbi. I am the Mom of 2 great kids, and Nana to 3 amazing littles. I share my home in the beautiful PNW with my husband Kevin, and 2 furbabies, a Pyrador named Sia, and a Boxer/GSD Mix named Hawk..

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