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Cauliflower Au Gratin (Keto Casserole) Recipe

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4.3 from 6 reviews

  • Author: Sara
  • Total Time: 1 hour 25 minutes
  • Yield: 8 servings
  • Diet: Low Carb, Gluten Free, Keto

Description

This Keto Cauliflower Au Gratin is a creamy, cheesy casserole perfect for a low-carb diet. Featuring thinly sliced cauliflower layered with shredded Swiss Gruyere cheese and green onions, all baked in rich heavy cream until golden and tender. A delicious and satisfying side dish that’s both comforting and keto-friendly.

Ingredients

Vegetables

  • 1 head cauliflower (or 4 cups), cut into thin slices
  • 4 green onions, sliced

Dairy

  • 2 cups Swiss Gruyere cheese, shredded (can also use just Swiss cheese)
  • 1 1/2 cups heavy cream

Pantry

  • Salt, to taste
  • Black pepper, to taste
  • Cooking spray, for greasing the baking dish

Instructions

  1. Preheat Oven and Prepare Dish: Preheat your oven to 375°F (190°C). Spray an 8×10 inch casserole dish with cooking spray and set it aside to prevent sticking.
  2. Slice the Cauliflower: Thinly slice the cauliflower into even slices. This layering technique helps the cauliflower cook evenly and absorb flavors.
  3. Layer Cauliflower: Place half of the sliced cauliflower in an even layer in the prepared baking dish.
  4. Add Cheese and Green Onions: Sprinkle half of the shredded Gruyere cheese over the cauliflower layer. Evenly distribute the sliced green onions on top of the cheese. Season with salt and black pepper to taste.
  5. Add Remaining Cauliflower: Layer the rest of the sliced cauliflower evenly over the cheese and green onions.
  6. Pour Heavy Cream and Top with Cheese: Pour 1 1/2 cups of heavy cream evenly over the cauliflower layers. Top the casserole with the remaining shredded Gruyere cheese.
  7. Cover and Bake: Cover the baking dish with foil and bake in the preheated oven for 30 minutes. This helps the cauliflower cook through while melting the cheese.
  8. Remove Foil and Continue Baking: Remove the foil and bake uncovered for an additional 40 minutes, or until the cauliflower is fork-tender and the cheese is golden and bubbly. Check periodically to avoid over-browning.
  9. Rest Before Serving: Let the casserole sit for 5 minutes after taking it out of the oven to allow the sauce to thicken slightly before serving.
  10. Store Leftovers: Store any leftovers in an airtight container in the refrigerator for up to 3-4 days.

Notes

  • For a milder flavor, substitute Gruyere with regular Swiss cheese.
  • Make sure to slice the cauliflower evenly for uniform baking.
  • Adjust seasoning with salt and pepper to taste before baking.
  • Covering the casserole initially helps trap steam and cook the cauliflower through.
  • Letting the casserole rest allows the cream sauce to thicken and enhances texture.
  • This recipe is naturally gluten-free and keto-friendly.
  • Prep Time: 15 minutes
  • Cook Time: 1 hour 10 minutes
  • Category: Casserole
  • Method: Baking
  • Cuisine: French-inspired

Find it online: https://saraflavors.com/cauliflower-au-gratin-keto-casserole-recipe/