Easy Keto Broccoli & Cauliflower Au Gratin with Sausage
A Cheesy Delight You Won’t Forget
Imagine diving into a bubbling dish of creamy cheese, savory sausage, and tender broccoli and cauliflower, all baked to perfection. Sounds tempting, right? That’s exactly what you get with this Easy Keto Broccoli & Cauliflower Au Gratin with Sausage! It’s a comforting, low-carb dish that has taken the culinary world by storm and is perfect for a cozy night in.
Why Make This Recipe
You’re about to fall in love with this one-pan wonder! Here’s why:
- Easy Cleanup: Who wants to spend hours cleaning dishes after dinner? Not you! This recipe uses just a skillet and a baking dish.
- Family-Friendly: Even the pickiest eaters will love this cheesy, meaty goodness. Kids, adults, everyone is going to ask for seconds!
- Keto-Friendly: With no carbs in sight and all the flavor you need, this dish meets your keto requirements without sacrificing taste.
Ingredients
You don’t need fancy stuff — just these basics!
- 1 head cauliflower, cut into florets
- 1 head broccoli, cut into florets
- 12 oz smoked sausage, sliced into rounds
- 2 Tbsp butter
- 1 medium onion, finely diced
- 2 garlic cloves, minced
- 8 oz cream cheese, softened
- 1 cup heavy cream
- 2 cups shredded cheddar cheese
- Salt and freshly ground black pepper, to taste
Directions
Follow these easy steps to cheesy perfection:
- Preheat the oven to 350°F (175°C) and grease a 9×9-inch baking dish.
- In a large skillet over medium-high heat, brown the sausage slices for about 5–7 minutes, then remove and set aside.
- Melt the butter in a saucepan over medium heat, add the diced onion, and cook until softened, about 3–4 minutes.
- Stir in the garlic and cook for another 30 seconds.
- Lower the heat, add the softened cream cheese, and stir until melted. Whisk in the heavy cream and simmer for 3–5 minutes until the sauce thickens.
- Remove from heat and fold in shredded cheddar until smooth; season with salt and pepper.
- In a large bowl, combine broccoli and cauliflower florets with the browned sausage, then pour the cheese sauce over and toss to coat.
- Transfer to the prepared baking dish and bake for 15–20 minutes until bubbling and lightly golden. For extra browning, broil for 1–2 minutes.
- Let rest for a few minutes before serving.

How to Make Easy Keto Broccoli & Cauliflower Au Gratin with Sausage (Overview)
Let’s be honest: this dish is not just about being easy; it’s a cozy hug in a dish! Start by getting the sausage nice and browned. While that’s happening, sauté those onions and garlic to get your kitchen smelling divine. Combine everything in a bowl, and coat those veggies in that heavenly cheese sauce. Bake and voilà! Dinner is served. 🎉 Pro tip: Don’t skip toasting the garlic — it makes all the difference!
How to Serve Easy Keto Broccoli & Cauliflower Au Gratin with Sausage
This dish deserves a place of honor on your dinner table. Serve it hot with a sprinkle of fresh herbs for a pop of color and flavor. Pair it with a crisp salad for a nice contrast, or go all-in and have it as a main dish. The golden cheese crust and the vibrant greens will have your guests’ mouths watering before they even take a bite!
How to Store Easy Keto Broccoli & Cauliflower Au Gratin with Sausage
Got leftovers? Lucky you! This dish stays fresh in the fridge for about 3–4 days! Just make sure it’s in an airtight container. For longer storage, you can freeze it for up to 3 months. Reheat in the oven for the best texture — that gooey cheese deserves some love!
Tips to Make Easy Keto Broccoli & Cauliflower Au Gratin with Sausage
- Timing is key: Don’t overcook the veggies; they’ll cook more in the oven.
- Use different cheese: If cheddar isn’t your thing, go for mozzarella or gouda for a unique twist.
- Add spices: A pinch of cayenne or smoked paprika can amp up the flavor.
Variation
Feeling adventurous? Try adding some chopped spinach or kale for extra greens, or swap out the sausage for crispy bacon. For a vegan version, use plant-based sausages, cashew cream, and nutritional yeast for that cheesy flavor.
FAQs
Can I use frozen broccoli and cauliflower?
Absolutely! Just make sure to thaw and drain any excess water before mixing it with the sauce.
How do I make this ahead of time?
Prepare the dish up to the baking step, cover it tightly, and refrigerate it. Bake it just before serving!
Can I freeze leftovers?
Yes! Allow the dish to cool completely, then freeze in an airtight container. Reheat in the oven for the best results.
📌 Pin this recipe for your next cozy dinner night!

Easy Keto Broccoli & Cauliflower Au Gratin with Sausage
Ingredients
Method
- Preheat the oven to 350°F (175°C) and grease a 9x9-inch baking dish.
- In a large skillet over medium-high heat, brown the sausage slices for about 5–7 minutes, then remove and set aside.
- Melt the butter in a saucepan over medium heat, add the diced onion, and cook until softened, about 3–4 minutes.
- Stir in the garlic and cook for another 30 seconds.
- Lower the heat, add the softened cream cheese, and stir until melted. Whisk in the heavy cream and simmer for 3–5 minutes until the sauce thickens.
- Remove from heat and fold in shredded cheddar until smooth; season with salt and pepper.
- In a large bowl, combine broccoli and cauliflower florets with the browned sausage, then pour the cheese sauce over and toss to coat.
- Transfer to the prepared baking dish and bake for 15–20 minutes until bubbling and lightly golden.
- For extra browning, broil for 1–2 minutes.
- Let rest for a few minutes before serving.





