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Keto / DINNER / Keto Broccoli and Cauliflower Au Gratin with Sausage

Keto Broccoli and Cauliflower Au Gratin with Sausage

January 7, 2026 by Kaitlyn

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If you’re looking for a comforting dish that feels indulgent but fits perfectly into your low-carb lifestyle, then you’re in the right place! This Keto Broccoli and Cauliflower Au Gratin with Sausage is one of my all-time favorites. It’s rich, cheesy, and packed with flavor, making it an ideal choice for busy weeknights or family gatherings. The combination of tender broccoli and cauliflower with savory sausage creates a satisfying meal that everyone will love.

What makes this dish so special is not just its deliciousness but also its simplicity. With just a handful of wholesome ingredients, you can whip up this cheesy delight in no time. So, grab your apron and let’s get started!

Why You’ll Love This Recipe

  • Easy to Prepare: With straightforward steps, this recipe comes together quickly, making it perfect for weeknight dinners.
  • Family-Friendly: Kids and adults alike will enjoy the cheesy goodness, making it a hit at any gathering.
  • Make-Ahead Convenience: You can prepare this dish in advance and simply bake it when you’re ready to serve.
  • Low-Carb Delight: It fits perfectly into your keto lifestyle while still being utterly satisfying.
  • Flavorful Comfort Food: The combination of cheese, veggies, and sausage creates a rich taste that feels indulgent.
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Ingredients You’ll Need

To create this delightful Keto Broccoli and Cauliflower Au Gratin with Sausage, you’ll need some simple and wholesome ingredients that are easy to find. Here’s what you’ll gather:

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For the Main Dish

  • 3 cups Cauliflower Florets (lightly steamed)
  • 2 cups Broccoli Florets (lightly steamed)
  • 12 ounces Sliced Smoked Sausage

For the Cheese Sauce

  • 2 tbsp Butter
  • 1/2 Onion (diced)
  • 2 tsp Minced Garlic
  • 2 ounces Cream Cheese (softened)
  • 2/3 cup Heavy Whipping Cream
  • 1 1/2 cups Shredded Cheddar Cheese

Variations

This recipe is wonderfully versatile! Here are some ideas to customize it according to your taste preferences:

  • Swap the protein: Feel free to use chicken or turkey sausage instead of smoked sausage for a different flavor profile.
  • Add more veggies: Toss in some spinach or bell peppers to increase the nutritional value without sacrificing taste.
  • Change the cheese: Experiment with different cheeses like Monterey Jack or Pepper Jack for an extra kick!
  • Make it spicy: Add some red pepper flakes or diced jalapeños if you like a little heat in your dishes.

How to Make Keto Broccoli and Cauliflower Au Gratin with Sausage

Step 1: Preheat Your Oven

Start by preheating your oven to 350 degrees Fahrenheit. This ensures that your dish cooks evenly when it’s time to bake.

Step 2: Sauté the Sausage

In a skillet over medium-high heat, add the sliced sausage. Sauté until seared and nice and browned. This adds depth of flavor to your dish. Once done, remove from heat and set aside.

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Step 3: Prepare the Cheese Sauce

Melt butter in a pot over medium heat. Add the diced onion here; sauté until softened—this brings out their natural sweetness and aroma. Then mix in minced garlic for about 30 seconds until fragrant.

Step 4: Combine Creamy Ingredients

Add softened cream cheese into the pot until melted completely. Following that, pour in heavy whipping cream and whisk well. Let this simmer over medium-low heat until thickened; it’s important as it’ll hold everything together beautifully.

Step 5: Mix in Cheese

Stir in shredded cheddar cheese gradually while seasoning with salt and pepper according to your taste. The goal is melty perfection!

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Step 6: Combine Everything Together

In a mixing bowl, combine lightly steamed cauliflower florets, broccoli florets, and sautéed sausage. Pour the creamy cheese sauce over them and stir gently to coat every piece evenly.

Step 7: Bake Your Dish

Spread everything into a greased 9×9 baking dish. Bake for about 15-20 minutes until bubbly and golden on top. The waiting is hard—it smells incredible!

Now you have a deliciously cheesy Keto Broccoli and Cauliflower Au Gratin with Sausage that’s sure to please everyone at the table! Enjoy!

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Pro Tips for Making Keto Broccoli and Cauliflower Au Gratin with Sausage

Creating a delicious dish is all about the little details, and these tips will help you achieve the best version of this creamy, cheesy delight!

  • Choose fresh vegetables: Using fresh broccoli and cauliflower not only enhances the flavor but also ensures the best texture in your au gratin. Fresh veggies retain their crunch, making each bite satisfying.

  • Sauté your sausage well: Make sure to sear your sliced sausage until it has a nice brown color. This step adds a depth of flavor that makes the dish more savory and hearty.

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  • Use room temperature cream cheese: Softened cream cheese blends smoothly into your sauce, preventing lumps. This creates a creamy consistency that envelops your vegetables beautifully.

  • Don’t skip the simmer: Allowing the cheese sauce to simmer over medium-low heat thickens it properly and intensifies the flavors. A well-thickened sauce means every bite is packed with cheesy goodness.

  • Experiment with cheeses: Feel free to mix different cheeses like mozzarella or gouda for added flavor and texture. Each variety brings something unique, making your au gratin even more special.

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How to Serve Keto Broccoli and Cauliflower Au Gratin with Sausage

Presentation can elevate any meal, so let’s explore some delightful ideas to serve this scrumptious dish!

Garnishes

  • Fresh herbs: A sprinkle of chopped parsley or chives adds a pop of color and freshness that brightens up this rich dish.
  • Crushed red pepper flakes: For those who enjoy a bit of heat, a dash of crushed red pepper can enhance the flavors and add an exciting kick.

Side Dishes

  • Mixed Green Salad: A crisp salad with mixed greens, cherry tomatoes, and a light vinaigrette balances the richness of the au gratin perfectly.
  • Garlic Roasted Asparagus: Toss asparagus spears in olive oil, garlic, and lemon juice before roasting them until tender. This flavorful side complements the creamy dish beautifully.
  • Cauliflower Rice: Light and low-carb, cauliflower rice is a fantastic side that soaks up any extra cheese sauce while keeping things healthy.
  • Zucchini Noodles: Sautéed zucchini noodles are a fun low-carb alternative to pasta that pairs wonderfully with the cheesy flavors of this au gratin.

Enjoy serving this delightful dish at your next dinner gathering; it’s bound to be a hit!

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Make Ahead and Storage

This Keto Broccoli and Cauliflower Au Gratin with Sausage is perfect for meal prep, as it can be made ahead of time and stored for later use. Whether you’re planning a busy week or just want to enjoy this delicious dish on demand, here’s how to keep it fresh.

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Storing Leftovers

  • Store any leftover au gratin in an airtight container in the refrigerator.
  • It will stay fresh for up to 3 days.
  • Ensure the dish is completely cooled before sealing it to avoid condensation.

Freezing

  • To freeze, portion the au gratin into freezer-safe containers.
  • It can be frozen for up to 2 months.
  • For best results, consider wrapping the container in aluminum foil to prevent freezer burn.

Reheating

  • Reheat leftovers in the oven at 350°F (175°C) until warmed through, about 20 minutes.
  • You can also microwave individual portions on high for 2-3 minutes, checking periodically.

FAQs

You might have some questions about making this delightful dish! Here are some common inquiries answered.

Can I make Keto Broccoli and Cauliflower Au Gratin with Sausage without cream cheese?

Absolutely! If you prefer a dairy-free option, you can substitute cream cheese with a non-dairy cream cheese alternative or use pureed cashews for a similar texture.

How do I store Keto Broccoli and Cauliflower Au Gratin with Sausage leftovers?

Leftovers should be stored in an airtight container in the fridge for up to three days. For longer storage, consider freezing individual portions.

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Can I use different types of sausage in this recipe?

Yes! Feel free to experiment with different types of smoked sausages or even chicken sausage to suit your taste preferences while keeping it keto-friendly.

Is this Keto Broccoli and Cauliflower Au Gratin suitable for meal prep?

Definitely! This recipe is great for meal prep. Just make a big batch and store it in the fridge or freezer for quick meals throughout the week.

Final Thoughts

I hope you find joy in making this Keto Broccoli and Cauliflower Au Gratin with Sausage! It’s not just a side dish; it’s a hearty meal that combines comfort food with healthy ingredients. Enjoy every cheesy bite, and don’t hesitate to share your creations with family and friends. Happy cooking!

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Keto Broccoli and Cauliflower Au Gratin with Sausage

Keto Broccoli and Cauliflower Au Gratin with Sausage
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Indulge in the creamy goodness of Keto Broccoli and Cauliflower Au Gratin with Sausage, a dish that perfectly marries comfort food with low-carb nutrition. This delightful casserole features tender broccoli and cauliflower enveloped in a rich, cheesy sauce and savory sausage. It’s an ideal choice for busy weeknights or family gatherings, offering a satisfying meal that everyone will love. With simple ingredients and easy preparation steps, you can whip up this tasty dish in no time. Perfect as a main course or a hearty side, this recipe is sure to become a favorite in your household!

  • Author: Kaitlyn
  • Prep Time: 15 minutes
  • Cook Time: 20 minutes
  • Total Time: 35 minutes
  • Yield: Serves approximately 6
  • Category: Main
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 3 cups cauliflower florets (lightly steamed)
  • 2 cups broccoli florets (lightly steamed)
  • 12 ounces sliced chicken or turkey sausage
  • 2 tbsp butter
  • 1/2 onion (diced)
  • 2 tsp minced garlic
  • 2 ounces cream cheese (softened)
  • 2/3 cup heavy whipping cream
  • 1 1/2 cups shredded cheddar cheese

Instructions

  1. Preheat oven to 350°F (175°C).
  2. In a skillet over medium-high heat, sauté sliced sausage until browned; set aside.
  3. Melt butter in a pot over medium heat; add diced onion and sauté until softened. Stir in minced garlic for about 30 seconds.
  4. Add softened cream cheese; mix until melted. Pour in heavy whipping cream and simmer until thickened.
  5. Gradually stir in shredded cheddar cheese, seasoning with salt and pepper.
  6. In a mixing bowl, combine lightly steamed cauliflower, broccoli, and sautéed sausage; pour cheese sauce over and stir to coat.
  7. Transfer mixture to a greased baking dish and bake for 15-20 minutes until bubbly and golden.

Nutrition

  • Serving Size: 1 serving
  • Calories: 360
  • Sugar: 3g
  • Sodium: 780mg
  • Fat: 26g
  • Saturated Fat: 13g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 9g
  • Fiber: 4g
  • Protein: 24g
  • Cholesterol: 85mg

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