Cheesy Keto Cauliflower Au Gratin Recipe
This Cheesy Keto Cauliflower Au Gratin is a rich, creamy, and low-carb twist on the classic comfort food. Featuring tender cauliflower slices baked in a decadent Gruyere cheese sauce with green onions, it’s perfect for those following a keto diet or anyone looking for a delicious, cheesy cauliflower dish. The recipe is easy to prepare, combining heavy cream and Swiss Gruyere cheese to create a luscious, golden-brown topping that is both satisfying and nutritious.
- Prep Time: 15 minutes
- Cook Time: 1 hour 10 minutes
- Total Time: 1 hour 25 minutes
- Yield: 4 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
- Diet: Keto
Ingredients
Vegetables
- 1 head cauliflower (or 4 cups), cut in slices
- 4 green onions, sliced
Dairy
- 2 cups Swiss Gruyere cheese, shredded (can substitute with Swiss cheese)
- 1 ½ cups heavy cream
Seasonings
- Salt, to taste
- Black pepper, to taste
Instructions
- Preheat and prepare dish: Preheat your oven to 375°F (190°C). Spray a baking dish with cooking spray to prevent sticking and set it aside.
- Slice and layer cauliflower: Thinly slice the cauliflower and add about half of it in a layer to the prepared baking dish. This layering will create the base of your au gratin.
- Add cheese and onions: Sprinkle half of the shredded Gruyere cheese evenly over the cauliflower layer. Then evenly distribute all the sliced green onions on top. Season with salt and black pepper to taste.
- Layer remaining cauliflower: Add the remaining cauliflower slices evenly over the cheese and green onion layer, creating another layer.
- Add cream and remaining cheese: Pour the heavy cream evenly over the layered cauliflower. Finally, top with the remaining shredded cheese.
- Bake covered: Cover the baking dish tightly with aluminum foil and place it in the preheated oven. Bake for 30 minutes to let the cauliflower cook through and flavors meld.
- Bake uncovered: Remove the foil and continue baking for 40 minutes, or until the cauliflower is fork-tender and the cheese on top is golden brown and bubbly. Monitor periodically to avoid burning.
- Let rest and serve: Remove from the oven and let the dish sit for 5 minutes to thicken and set. Serve warm and enjoy!
Notes
- Nutrition per serving: 280 calories, 24g fat, 3.6g carbohydrates, 1.8g fiber, net carbs 1.8g, 9.4g protein.
- Gruyere cheese provides a creamy, luxurious flavor, but if unavailable, Swiss cheese can be used alone.
- Sharp cheddar cheese is an alternative, though it changes the flavor profile.
- If you find the dish too soupy, reduce heavy cream to 1 cup; it still works well but with slightly less creaminess.
- Store leftovers in an airtight container and refrigerate.
