Cauliflower Au Gratin: A New Low-Carb Option for an Old Favorite

While potatoes can never be truly replaced, this dish combines the cheesy au gratin flavor you love with a healthier, low-carb veggie.

Share This Post

Prep time: 15 minutes
Cook time: 25 minutes
Serves 6


  • 1 large head of cauliflower
  • 2 Tb. butter
  • 2 cloves garlic, minced
  • 2 Tb. all-purpose flour
  • 1 ½ cups whole milk
  • 2 cups Gruyere, shredded
  • ½ cup Parmesan, grated
  • 2 tsp. thyme, chopped
  • Kosher salt
  • Ground black pepper
  • Parsley, chopped


  • 1

    Preheat the oven to 375° and butter a medium casserole dish.
  • 2

    In a large pot of boiling salted water, cook cauliflower for 3 minutes. Use a slotted spoon to transfer cooked cauliflower to a bowl of ice water to drain.
  • 3

    Lay cauliflower out on a baking sheet lined with paper towels to let dry completely.
  • 4

    In a large skillet over medium heat, melt butter. Add garlic and cook until fragrant, about 1 minute. Whisk in flour and cook until flour is golden and starts to bubble, about 1 minute.
  • 5

    Add milk in slowly and stir until mixture comes to a simmer. Boil until slightly thickened, about 1 minute.
  • 6

    Turn off heat and add 1 cup of Gruyere, Parmesan and thyme. Stir until the cheese has melted, then season with salt and pepper.
  • 7

    Add half of the cauliflower to the prepared pan. Pour in half of the cream mixture. Repeat with remaining cauliflower and cream, then top with remaining Gruyere.
  • 8

    Bake until bubbly and golden on top, about 25 minutes.
  • 9

    Garnish with parsley.

Not a member? Join for FREE!

Enjoy encouraging, motivating, uplifting content created just for women like you, all from the healthcare name you trust: Franciscan Health. 


Magazine Subscription

Join and receive a complimentary subscription to Inspiring Women magazine.

Curated Email Content

Members receive weekly curated email content tailored for women just like you.

Weekly Devotional Series

Replenish your spirit with devotionals delivered right to your inbox twice a week.

Members-only Events

Enjoy invitations to exclusive events where you can connect with fellow members and be inspired.

Not a member?
Join for FREE!

Enjoy encouraging, motivating, uplifting content created just for women like you, all from the health care name you trust: Franciscan Health.

More to Explore

Penne Pasta Casserole

Penne Pasta Casserole

What bad day can’t be fixed with pasta? Make dinner time simple with this delicious casserole. With just a handful of ingredients and only two dishes to clean, you’ll be...

Read More>>