Keto Cauliflower and Parmesan Gratin

This Keto Cauliflower and Parmesan Gratin is a sumptuous side dish that combines the creamy texture of cauliflower with the rich, nutty flavor of Parmesan, all baked to golden-brown perfection. It's a decadent way to enjoy your vegetables while keeping your macros in check.

Course Sides

Cuisine French

Keyword Keto Cauliflower Gratin, Keto Sides, Low Carb Cauliflower Bake, Parmesan Cauliflower

Prep Time 15

Cook Time 25

Total Time 40

Servings people

Calories 290kcal

Equipment

9x13 inch baking dish
Large pot
Saucepan
Colander
Cheese grater

Ingredients

1 large head cauliflower approx. 2 pounds or 900g, cut into florets
2 tbsp unsalted butter 30g
1 cup heavy cream 240ml
1 tsp garlic powder 3g
½ tsp onion powder 1g
½ tsp mustard powder 1g
¼ tsp ground nutmeg 0.5g
Salt and pepper to taste
1 ½ cups grated Parmesan cheese 150g
½ cup shredded mozzarella cheese 50g
Fresh thyme leaves for garnish (optional)

Instructions

Preheat your oven to 375°F (190°C). Grease a 9x13 inch baking dish with butter or non-stick cooking spray.
Bring a large pot of salted water to a boil. Add the cauliflower florets and cook for 5 minutes until they are just tender. Drain well and set aside.
In a saucepan over medium heat, melt the butter. Add the heavy cream, garlic powder, onion powder, mustard powder, nutmeg, and a pinch of salt and pepper. Stir to combine and bring to a simmer.
Once simmering, remove the saucepan from the heat, and stir in 1 cup of the grated Parmesan cheese until it's completely melted into the sauce.
Place the blanched cauliflower florets into the prepared baking dish, and pour the Parmesan cream sauce evenly over the top.
Sprinkle the remaining 1/2 cup of Parmesan cheese and the mozzarella cheese over the sauced cauliflower.
Bake in the preheated oven for 25 minutes, or until the top is golden brown and bubbly.
Garnish with fresh thyme leaves before serving, if desired.

Notes

For a crispy topping, broil the gratin for the final 2-3 minutes of cooking. Watch closely to prevent burning. To make this dish ahead of time, prepare up to the point of baking, cover, and refrigerate. Add an extra 5-10 minutes to the cooking time if baking from chilled.

Nutrition