How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Low Carb Cauliflower Au Gratin?

You need 14 ingredients. The key ingredients include: 1 head cauliflower, 1 small onion, diced, 1 garlic clove, minced, 2 tablespoons butter, divided, and more.

Is Low Carb Cauliflower Au Gratin suitable as vegetarian?

Yes, Low Carb Cauliflower Au Gratin falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Low Carb Cauliflower Au Gratin?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Low Carb Cauliflower Au Gratin Recipe

Name: Low Carb Cauliflower Au Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 head cauliflower; 1 small onion, diced; 1 garlic clove, minced; 2 tablespoons butter, divided; 1 teaspoon salt; 2 teaspoons fresh cracked pepper; 1 teaspoon dried marjoram; 1/2 cup diced ham; 1 cup shredded swiss cheese; 1 cup shredded cheddar cheese; 1 egg, beaten; 1/4 cup half-and-half; 1/4 cup cream; 1/2 cup sour cream

Try this homemade Low Carb Cauliflower Au Gratin recipe the whole family will love. Made with cauliflower, onion, garlic and butter. Easy step-by-step i…

This Low Carb Cauliflower Au Gratin relies on simple, everyday ingredients such as head cauliflower, small onion, diced, garlic clove, minced and butter, divided. It comes together quickly and makes 4 servings, at about 565 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Vegetarian

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Low Carb Cauliflower Au Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

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