This Keto Broccoli and Cauliflower Au Gratin with Sausage is a cozy, low-carb twist on a classic comfort dish. Tender broccoli and cauliflower get a rich, creamy cheese sauce and savory sausage. The top bakes until golden and bubbly. It smells buttery and garlicky, and the texture is creamy with a gentle bite from the vegetables. This is perfect for weeknights, meal prep, or a low-carb holiday side.
Recipe Information
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Servings: 4
- Difficulty Level: Easy
Nutrition Information
Approximate per serving:
- Calories per serving: 520 kcal
- Protein: 20 g
- Carbohydrates: 6 g
- Fat: 46 g
- Fiber: 2 g
- Sugar: 2 g
- Sodium: 750 mg
(Values are estimates based on the listed ingredients. Exact values vary by brands and sausage choice.)
Why Make This Keto Broccoli and Cauliflower Au Gratin with Sausage
This recipe gives you warm, comforting flavors without the carbs from potatoes. It combines creamy, cheesy sauce with savory sausage for a filling meal. The vegetables stay slightly firm so you get a nice bite. It’s quick to put together, feeds a small family, and reheats well. The aroma while baking will make your kitchen feel cozy and inviting.
How to Make Keto Broccoli and Cauliflower Au Gratin with Sausage
You’ll blanch the vegetables, make a simple cream-cheese mix, add cooked sausage, and bake until bubbly. The process is straightforward and forgiving. Read the steps below and prepare for a rich, satisfying dish.
Ingredients:
- 2 cups broccoli florets
- 2 cups cauliflower florets
- 1 cup heavy cream
- 1 cup shredded cheese (cheddar or mozzarella)
- 1 cup cooked sausage, crumbled
- 1/2 cup grated parmesan cheese
- 1 teaspoon garlic powder
- Salt and pepper to taste
- 2 tablespoons butter
Directions:
Step 1: Preparation
Preheat the oven to 350°F (175°C). Bring a large pot of salted water to a boil. Add broccoli and cauliflower and boil until slightly tender, about 5 minutes. Drain well and set the vegetables aside to remove excess moisture.
Step 2: Mixing
In a skillet, melt the butter over medium heat. Add the cooked sausage and sauté for a few minutes until warmed and slightly browned. In a mixing bowl, whisk the heavy cream with garlic powder, salt, pepper, and half of the shredded cheese. Place the drained vegetables and the sautéed sausage in a baking dish. Pour the cream and cheese mixture evenly over the top so everything is coated.
Step 3: Cooking
Sprinkle the remaining shredded cheese and the grated parmesan evenly over the dish. Bake in the preheated oven for 25–30 minutes, until the top turns golden and the sauce is bubbly. The edges should brown slightly and the center should be set.
Step 4: Finishing
Remove from the oven and let the gratin rest for 5 minutes. This helps the sauce thicken a bit. Serve hot, spooning creamy portions onto plates. Add extra cracked black pepper or a light sprinkle of fresh herbs if you like.
How to Serve Keto Broccoli and Cauliflower Au Gratin with Sausage
Serve this as a main with a simple green salad or as a hearty side with roasted chicken. For a special dinner, pair it with garlic butter shrimp for contrast. Top with chopped parsley for color and a squeeze of lemon if you want a brightness to cut the richness.
How to Store Keto Broccoli and Cauliflower Au Gratin with Sausage
- Refrigerator: Cool completely, cover tightly, and store for 3–4 days. Reheat in a 350°F oven until hot and bubbling, about 15–20 minutes, or microwave individual portions.
- Freezer: Freeze in an airtight container for up to 2 months. Thaw overnight in the fridge before reheating in the oven. Reheating from frozen in a covered dish at 350°F may take 30–40 minutes.
Expert Tips for Perfect Keto Broccoli and Cauliflower Au Gratin with Sausage
- Drain the vegetables well. Excess water makes the sauce thin.
- Use full-fat heavy cream and good-quality cheese for best texture and flavor.
- If your sausage is very salty, reduce added salt in the cream mixture.
- For extra browning, broil for 1–2 minutes at the end—watch closely.
- Cut broccoli and cauliflower into similar sizes so they cook evenly.
- Let the gratin rest before serving so the sauce firms up and is easier to plate.
- If you prefer a thicker sauce, simmer the cream mixture for 1–2 minutes before adding to the dish.
Delicious Variations
- Mushroom and Spinach: Swap sausage for sautéed mushrooms and add a handful of spinach for a vegetarian twist; boost parmesan for more savory depth.
- Bacon and Gruyère: Use crisp bacon and gruyère cheese for a smoky, nutty flavor.
- Spicy Sausage: Use chorizo or hot Italian sausage for heat and a deeper spice profile.
- Herb-Lemon: Add lemon zest and fresh thyme to brighten the dish.
- Low-Fat Option: Use half-and-half instead of heavy cream and reduce cheese slightly; note texture will be less rich.
Frequently Asked Questions
Q: Can I use frozen broccoli and cauliflower?
A: Yes. Thaw and drain frozen vegetables well before using. Pat them dry to remove extra moisture. Blanching briefly still helps with texture.
Q: Can I make this dairy-free or lower in fat?
A: For dairy-free, use a coconut cream or cashew cream and a dairy-free shredded cheese. The texture and taste will change. For lower fat, use half-and-half and reduce the cheese, but expect a thinner, less rich sauce.
Q: How do I prevent the sauce from being watery?
A: Drain and pat dry the vegetables after boiling. Use full-fat cream, and let the gratin rest after baking. If needed, cook the cream mixture briefly to reduce it before combining.
Q: Can I prepare this ahead of time?
A: Yes. Assemble the gratin, cover, and refrigerate for up to 24 hours. Add a few extra minutes to the baking time if it goes into the oven cold. Don’t bake from frozen without thawing first.
Q: Is this suitable for strict keto?
A: Yes. The carb count is low (about 6 g per serving) thanks to the broccoli and cauliflower and the absence of flour or breadcrumbs. Adjust portion sizes to fit your daily carbs.
Q: Can I add other vegetables?
A: You can add low-carb vegetables like zucchini or spinach. Avoid starchy vegetables (potatoes, corn) to keep it keto-friendly.
Q: How do I reheat leftovers so they stay creamy?
A: Reheat in a 350°F oven covered for 15–20 minutes, then uncover for 5 minutes to refresh the top. For quick reheating, microwave but stir halfway so sauce warms evenly.
Conclusion
This Keto Broccoli and Cauliflower Au Gratin with Sausage is a rich, comforting dish that balances creamy texture with savory sausage and tender vegetables. It’s easy to make, satisfying, and keeps well for leftovers. If you’d like the original recipe source and a printable version, see Keto Broccoli and Cauliflower Au Gratin With Sausage. Give it a try—your oven will fill the house with irresistible aroma, and you’ll have a warm, cheesy dish to enjoy.
Print
Keto Broccoli and Cauliflower Au Gratin with Sausage
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Diet: Keto
Description
A cozy, low-carb twist on a classic comfort dish featuring tender broccoli and cauliflower in a rich, creamy cheese sauce with savory sausage.
Ingredients
- 2 cups broccoli florets
- 2 cups cauliflower florets
- 1 cup heavy cream
- 1 cup shredded cheese (cheddar or mozzarella)
- 1 cup cooked sausage, crumbled
- 1/2 cup grated parmesan cheese
- 1 teaspoon garlic powder
- Salt and pepper to taste
- 2 tablespoons butter
Instructions
- Preheat the oven to 350°F (175°C). Bring a large pot of salted water to a boil. Add broccoli and cauliflower and boil until slightly tender, about 5 minutes. Drain well and set aside.
- In a skillet, melt the butter over medium heat. Add the cooked sausage and sauté for a few minutes until warmed and slightly browned. In a mixing bowl, whisk the heavy cream with garlic powder, salt, pepper, and half of the shredded cheese. Place the drained vegetables and sautéed sausage in a baking dish and pour the cream mixture evenly over the top.
- Sprinkle the remaining shredded cheese and the grated parmesan over the dish. Bake for 25-30 minutes, until the top turns golden and the sauce is bubbly.
- Remove from the oven and let rest for 5 minutes before serving.
Notes
For extra browning, broil for 1–2 minutes at the end. Let the gratin rest before serving so the sauce firms up.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 520
- Sugar: 2g
- Sodium: 750mg
- Fat: 46g
- Saturated Fat: 26g
- Unsaturated Fat: 20g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 2g
- Protein: 20g
- Cholesterol: 120mg
