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Broccoli & Cauliflower Au Gratin with Sausage recipe card

Easy Keto Broccoli & Cauliflower Au Gratin with Sausage

A creamy, low-carb casserole that pairs tender broccoli and cauliflower with browned smoked sausage and a rich cheddar-cream sauce — baked until bubbly and golden.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 1 casserole
Course: Dinner
Cuisine: American
Calories: 500
Ingredients Method Notes

Ingredients
  

Ingredients
  • 1 head cauliflower cut into florets
  • 1 head broccoli cut into florets (steamed or blanched)
  • 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

Method
 

  1. Heat oven to 350°F and grease a 9×9-inch baking dish.
  2. In a skillet over medium-high heat, brown sausage slices, about 5–7 minutes. Remove and set aside.
  3. In a saucepan, melt butter over medium heat. Add onion and cook until softened, about 3–4 minutes. Add garlic and cook 30 seconds.
  4. Lower heat and add cream cheese, stirring until melted. Whisk in heavy cream and simmer 3–5 minutes until thickened.
  5. Remove from heat and fold in cheddar until smooth. Season with salt and pepper.
  6. In a large bowl, combine broccoli, cauliflower, and sausage. Pour cheese sauce over and mix well.
  7. Transfer to baking dish and spread evenly. Bake 15–20 minutes until bubbly and golden.

Notes

- Briefly steam or blanch broccoli to ensure tenderness.
- For extra browning, broil for 1–2 minutes after baking.