Description
A rich, comforting, and keto-friendly Broccoli and Cauliflower Au Gratin loaded with smoky sausage, roasted vegetables, and a sharp cheddar cream sauce. It’s creamy, golden, and makes a perfect low-carb main dish or hearty side.
Ingredients
2 cups broccoli florets
2 cups cauliflower florets
1 tablespoon olive oil
1 teaspoon kosher salt
1 teaspoon black pepper
8 ounces smoked sausage, sliced into coins
2 cups heavy cream
1 teaspoon Dijon mustard
2 cloves garlic, minced
2 cups sharp cheddar cheese, freshly grated
0.5 cup extra cheddar cheese for topping
Instructions
1. Preheat oven to 375°F and place rack in the middle position.
2. Toss broccoli and cauliflower with olive oil, salt, and pepper. Roast on a sheet pan for 15 minutes until just tender and browned.
3. While veggies roast, sear sausage slices in a hot skillet until browned on both sides. Set aside.
4. In a saucepan, combine heavy cream, garlic, and Dijon mustard. Simmer for 5–6 minutes until slightly thickened.
5. Turn off heat and whisk in 2 cups of grated cheddar until fully melted.
6. In a ceramic baking dish (11×7 inch recommended), layer roasted veggies and sausage. Pour the cheese sauce evenly over the top and gently stir to coat.
7. Sprinkle with extra cheddar cheese.
8. Bake uncovered for 25–30 minutes until bubbly and golden on the edges.
9. Switch oven to broil for 2–3 minutes to brown the top. Watch carefully.
10. Remove from oven and let rest for 10 minutes before serving.
Notes
Use fresh vegetables for the best texture and flavor.
Grate your own cheddar to avoid anti-caking agents in pre-shredded cheese.
Letting it rest after baking is essential for a creamy, cohesive gratin.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dinner
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 portion (approx 1/6 of dish)
- Calories: 480
- Sugar: 3g
- Sodium: 780mg
- Fat: 42g
- Saturated Fat: 22g
- Unsaturated Fat: 18g
- Trans Fat: 0g
- Carbohydrates: 8g
- Fiber: 3g
- Protein: 18g
- Cholesterol: 125mg
Keywords: Keto, Low Carb, Gratin, Broccoli, Cauliflower