Easy Keto Broccoli & Cauliflower Au Gratin with Sausage — Low Carb Meals With Sausage

The aroma of baked cheese and savory sausage fills the kitchen as this Easy Keto Broccoli & Cauliflower Au Gratin with Sausage comes together. This delicious dish takes just under an hour to prepare and bake, combining the satisfying creaminess of cheeses with tender, crunchy vegetables. It’s a perfect low-carb comfort meal that fits seamlessly into any ketogenic lifestyle.

This recipe is ideal for anyone looking to enjoy a delicious low-carb dish without sacrificing flavor. It’s perfect for weeknight dinners or when hosting a gathering. You can prepare it in advance and easily store leftovers for later enjoyment.

Why You’ll Love This Recipe

• The combination of cheddar cheese and cream creates a rich, velvety sauce.
• Smoked sausage adds a delightful depth of flavor and protein.
• Broccoli and cauliflower provide a satisfying crunch and balance the creaminess.
• It’s a quick bake-and-serve dish that’s ready in under 30 minutes.

What You’ll Need

Gather the following ingredients to make this tasty dish:

For the Vegetables

• 1 head cauliflower, cut into florets (or a pre-chopped bag)
• 1 head broccoli, cut into florets (briefly steamed or blanched)

For the Sausage

• 12 oz smoked sausage, sliced into rounds

For the Sauce

• 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 (or a blend you like)
• Salt and freshly ground black pepper, to taste

Use pre-STEAMED broccoli to save time.

Substitutions & Swaps

• Swap smoked sausage for turkey or chicken sausage.
• Use mozzarella cheese for a milder flavor.
• Replace heavy cream with coconut cream for a dairy-free option.
• Use frozen cauliflower if fresh isn’t available.

How to Make It

Follow these steps for a satisfying dish.

Brown the sausage

In a large skillet over medium-high heat, brown the sausage slices until they’ve picked up color and a little crisp at the edges, about 5–7 minutes. Remove and set aside.

Sauté the onions and garlic

In a saucepan, melt the butter over medium heat. Add the diced onion and cook until softened, about 3–4 minutes. Stir in the garlic and cook another 30 seconds until fragrant.

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Make the cheese sauce

Lower the heat and add the softened cream cheese, stirring until it melts into the onions. Slowly whisk in the heavy cream and simmer for 3–5 minutes until the sauce thickens slightly.

Combine with cheese

Remove the pan from the heat and fold in the shredded cheddar until the sauce is smooth. Season with salt and pepper to your preference.

Mix the vegetables and sausage

In a large bowl, combine the broccoli and cauliflower florets with the browned sausage. Pour the cheese sauce over the mixture and toss so everything is evenly coated.

Bake the casserole

Transfer the mixture to the prepared baking dish and spread into an even layer. Bake 15–20 minutes, until the casserole is bubbling and the top develops a light golden color. If you want extra browning, broil for 1–2 minutes — watch closely.

Rest before serving

Let rest a few minutes before serving.

How to Store It

Fridge: Store in an airtight container for up to 3 days.
Freezer: No, the cream sauce doesn’t freeze well.
Reheat: Microwave for 1–2 minutes until hot.

Tips for Best Results

• Always sauté the onions until they’re translucent for better flavor.
• Use a mixture of cheeses for a more complex taste.
• Aim for a balance of vegetables and sausage in each serving.
• Allow the dish to rest before serving for easier portions.

Serving Suggestions

• Pair with a light salad for a complete meal.
• Serve alongside garlic bread for an indulgent dinner.
• Offer a side of sautéed spinach for extra greens.