There’s nothing quite like sinking your fork into a creamy, cheesy dish that feels like a warm hug on a plate. As the chilly evenings draw near, I find myself craving comfort food that doesn’t sacrifice my health goals. That’s when I created this Keto Broccoli and Cauliflower Au Gratin with Sausage—a deliciously satisfying low-carb feast that’s as easy to make as it is to devour.
With vibrant broccoli and cauliflower florets swimming in a velvety cheese sauce, this dish combines hearty flavors and textures that everyone at the table will love. Whether you’re meal prepping for the week or looking for a quick weeknight dinner, this recipe is versatile enough to accommodate any dietary preference. Leave out the sausage for a vegetarian option, or swap in your favorite proteins to make it your own. Get ready to fall in love with a comforting classic, all while staying committed to your wellness journey!
Why will you love Keto Broccoli and Cauliflower Au Gratin?
Delightfully Creamy: This dish boasts a rich, velvety cheese sauce that envelops tender vegetables, making it a comfort food lover’s dream.
Versatile Options: Easily adapt it to suit your preferences by omitting the sausage for a vegetarian spin or experimenting with different cheeses.
Meal Prep Friendly: Perfect for busy lives, this recipe is quick to whip up and saves well for future meals.
Nutrient-Rich Ingredients: Packed with broccoli and cauliflower, it combines health benefits with deliciousness, keeping you on track with your low-carb goals.
Crowd-Pleasing: Whether it’s a family dinner or a gathering, everyone will adore this hearty dish, proving that healthy can also be incredibly satisfying!
Keto Broccoli and Cauliflower Au Gratin Ingredients
For the Vegetables
• Cauliflower Florets – Provides a low-carb base; feel free to use pre-chopped for convenience.
• Broccoli Florets – Brightens the dish with color and nutrients; lightly steaming makes them tender.
For the Sauce
• Sliced Smoked Sausage – Adds heartiness and protein; omit for a delightful vegetarian version.
• Butter – Essential for sautéing onions, enhancing the flavor of the sauce.
• Diced Onion – Builds a flavorful base while adding a hint of sweetness.
• Minced Garlic – Infuses aromatic depth and richness into the dish.
• Cream Cheese – Creates a luscious, creamy sauce; it’s best softened for easy blending.
• Heavy Whipping Cream – Contributes to the creamy texture and richness of the sauce.
• Shredded Cheddar Cheese – Delivers a robust cheese flavor; don’t hesitate to mix in other varieties for extra zest.
With these simple yet effective ingredients, you’re on your way to creating a comforting and delicious Keto Broccoli and Cauliflower Au Gratin that everyone will love!
How to Make Keto Broccoli and Cauliflower Au Gratin
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Preheat the oven to 350°F (175°C). This ensures your casserole bakes evenly and achieves that perfect bubbling effect.
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Sear the sliced smoked sausage in a skillet over medium-high heat until browned, about 5-7 minutes. This step adds a delicious depth of flavor to your dish.
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Melt butter in a medium pot, then sauté the diced onion until soft, around 3-4 minutes. This builds a flavorful base that enhances the overall dish.
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Add minced garlic and sauté for 30 seconds until it becomes fragrant. The aromatic quality of garlic will tantalize your senses!
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Mix in the softened cream cheese until melted and smooth. Gradually whisk in the heavy cream, then simmer until thickened, about 3-5 minutes. This creates a luscious cheese sauce.
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Stir in the shredded cheddar cheese until completely melted. Season your sauce with salt and pepper for additional flavor.
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Combine the cauliflower, broccoli, and sausage in a large bowl, then pour the creamy cheese sauce over the top. Mix well to ensure every bite is deliciously coated.
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Spread the mixture into a 9×9 baking dish and bake for 15-20 minutes until bubbly and golden. Your kitchen will fill with an irresistible aroma!
Optional: Garnish with fresh herbs like parsley or chives before serving for an added touch of flavor!
Exact quantities are listed in the recipe card below.
What to Serve with Keto Broccoli and Cauliflower Au Gratin?
Elevate your dining experience with perfect side dishes that beautifully enhance this creamy, cheesy delight.
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Mixed Green Salad: A refreshing mix of crunchy greens and tangy dressing balances the richness of the au gratin beautifully.
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Garlic Roasted Brussels Sprouts: Their crispy edges and earthy flavor complement the creamy dish while adding a delightful crunch.
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Zucchini Noodles: Light and low-carb, these noodles add a fresh component that contrasts with the indulgent gratin, making every bite satisfying.
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Creamy Cauliflower Mash: For a double dose of cauliflower goodness, this velvety side adds another layer of creaminess while staying low-carb.
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Herb-Infused Quinoa: Light yet flavorful, this grain provides a wholesome base that pairs wonderfully with the rich cheese sauce and hearty sausage.
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Sparkling Water with Lemon: Refreshing and crisp, this drink cleanses the palate and complements the creamy flavors of your au gratin.
These sides not only elevate the meal but also create a harmonious feast that delights both the eyes and the taste buds!
How to Store and Freeze Keto Broccoli and Cauliflower Au Gratin
- Fridge: Store leftovers in an airtight container for up to 3 days. Make sure the dish has cooled completely before sealing to preserve freshness.
- Freezer: For longer storage, portion the au gratin into individual servings and freeze for up to 2 months. This makes for easy reheating later on!
- Reheating: To reheat, thaw in the fridge overnight before baking at 350°F (175°C) for about 20 minutes until heated through. Enjoy your comforting Keto Broccoli and Cauliflower Au Gratin!
Expert Tips for Keto Broccoli and Cauliflower Au Gratin
- Soften Cream Cheese: Ensure your cream cheese is softened before blending. This avoids lumps and creates a smooth, creamy sauce.
- Adjust Sauce Thickness: If the cheese sauce is too thick, simply whisk in more heavy cream, one tablespoon at a time, to achieve your desired consistency.
- Store Leftovers Wisely: Cool leftovers completely before transferring to an airtight container. They’ll stay fresh in the fridge for up to 3 days, or freeze for 2 months.
- Vegetarian Twist: For a vegetarian option, omit the sausage and incorporate other vegetables like bell peppers or spinach for added flavor and nutrition.
- Experiment with Cheeses: Don’t hesitate to mix different types of cheese in your Keto Broccoli and Cauliflower Au Gratin for a unique flavor experience—mozzarella or Monterey Jack can be delightful choices!
Variations & Substitutions for Keto Broccoli and Cauliflower Au Gratin
Feel free to play with this deliciously creamy dish, adding your personal flair and tastes along the way!
- Vegetarian Option: Omit the sausage and substitute with mushrooms or chickpeas for added texture and protein.
- Gluten-Free: Ensure all ingredients, especially cheese and cream, are certified gluten-free to maintain a safe dish for gluten-sensitive individuals.
- Cheese Mix: Try using a combination of cheeses, such as gouda or parmesan, for different flavors. Experimentation will elevate the depth of your cheese sauce!
- Spicier Kick: Incorporate spicy sausage or add red pepper flakes to the cheese sauce for a warming heat that pairs beautifully with the vegetables.
- Herb Infusion: Mix in fresh herbs like basil or dill for an aromatic boost. A hint of rosemary can also add an inviting warmth to the dish.
- Nutty Contrast: Top the gratin with crushed almonds or pecans before baking for a satisfying crunch that enhances the creamy texture.
- Extra Creamy: For an extra indulgence, swirl in ricotta cheese along with the cream cheese for an even richer sauce.
- Vegetable Variations: Replace part of the cauliflower or broccoli with other low-carb veggies like zucchini or asparagus to mix up the textures and nutrition.
With these variations, you can turn your Keto Broccoli and Cauliflower Au Gratin into a new favorite every time you make it!
Make Ahead Options
These Keto Broccoli and Cauliflower Au Gratin are perfect for busy home cooks seeking to streamline their meal prep! You can chop the cauliflower and broccoli, and slice the sausage up to 24 hours in advance; just refrigerate them in airtight containers. Additionally, you can prepare the creamy cheese sauce (mixing the cream cheese, heavy cream, and cheddar) and store it separately in the fridge for up to 3 days. When you’re ready to bake, simply mix the vegetables and sausage with the prepared sauce, spread it in the baking dish, and pop it in the oven at 350°F (175°C) for 15-20 minutes until bubbly and golden. This way, you’ll enjoy a comforting meal that’s just as delicious with minimal effort!
Keto Broccoli and Cauliflower Au Gratin Recipe FAQs
What type of cauliflower should I use for this recipe?
Absolutely! You can use fresh cauliflower florets, which provide the best texture. If you’re short on time, pre-chopped or frozen cauliflower works wonderfully as well. Just ensure you thaw and drain any excess moisture if using frozen to avoid a watery dish.
How can I store leftovers after making Keto Broccoli and Cauliflower Au Gratin?
You’ll want to allow the dish to cool completely before transferring it to an airtight container. Stored in the fridge, it will stay fresh for up to 3 days. To keep each serving at its best, portion it out before refrigerating!
Can I freeze Keto Broccoli and Cauliflower Au Gratin for later use?
Very! For freezing, I recommend dividing the au gratin into individual servings so you can easily grab a portion when you need it. Place them in airtight containers or freezer-safe bags, and they’ll keep well for up to 2 months. To reheat, thaw in the fridge overnight and bake at 350°F (175°C) for 20-25 minutes until nice and hot.
What should I do if my cheese sauce is too thick?
No worries! If you find your cheese sauce is thicker than you’d like, just whisk in more heavy cream, one tablespoon at a time, until you reach the desired consistency. This will keep your sauce creamy and flowing, ensuring every bite is delicious!
Is this recipe suitable for those with dairy allergies?
The Keto Broccoli and Cauliflower Au Gratin does include dairy ingredients. For those with dairy allergies, consider substituting the cream cheese and heavy cream with plant-based alternatives like cashew cream or coconut milk. Just ensure they are unsweetened varieties to maintain the savory flavor of the dish.
Keto Broccoli and Cauliflower Au Gratin: Comfort in Every Bite
Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C).
- Sear the sliced smoked sausage in a skillet over medium-high heat until browned, about 5-7 minutes.
- Melt butter in a medium pot, then sauté the diced onion until soft, around 3-4 minutes.
- Add minced garlic and sauté for 30 seconds until fragrant.
- Mix in the softened cream cheese until melted and smooth, then whisk in the heavy cream, and simmer until thickened, about 3-5 minutes.
- Stir in the shredded cheddar cheese until completely melted, seasoning sauce with salt and pepper.
- Combine the cauliflower, broccoli, and sausage in a large bowl, then pour the creamy sauce over the top.
- Spread the mixture into a 9x9 baking dish and bake for 15-20 minutes until bubbly and golden.