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Top view of cauliflower gratin in a blue oval casserole dish on a wooden board with a golden spoon

Cauliflower Gratin

This Cauliflower Gratin is a creamy and healthier side dish for your Thanksgiving or holiday table or any weeknight. It's made with simple pantry ingredients and can even be made in advance. 

Course Side Dish
Cuisine American
Keyword broccoli gratin, casserole, cauliflower casserole, cauliflower gratin, dairy free, easy gluten free breakfast recipe, easy vegetarian dish, keto, low carb, paleo, side dish, thanksgiving side dish
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 6 servings
Calories 215 kcal
Author Kelly


  • 2 cups broccoli florets
  • 2 cups cauliflower florets
  • 3 tablespoons vegan butter , may also sub with butter flavored coconut oil OR ghee if not dairy-free
  • 3 tablespoons almond flour
  • 1/4 cup vegetable broth , may also sub with chicken broth if not plant-based
  • 1/2 cup almond milk
  • 1/3 cup coconut cream
  • 1/3 cup dairy-free cream cheese (Kite Hill OR Miyokos) , may also sub with regular cream cheese if NOT dairy free
  • 3/4 teaspoon fine sea salt , or to taste
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon onion salt I usually use the one from Trader Joe's
  • 2/3 cups crushed Simple Mills grain-free crackers (or Hu's Kitchen grain-free crackers) + sauteed with 1 tsp avocado oil & 1 tsp nutritional yeast crushed pork rinds sauteed with 1 tsp avocado oil and 1 tsp nutritional yeast OR crumbled Parmesan cheese crisps
  • 2 tablespoons nut crumbs OR toasted keto breadcrumbs OR regular breadcrumbs
  • chopped fresh parsley , for garnish


  1. PREHEAT OVEN to 400F degrees.

    GREASE a 9x13 baking pan and add the broccoli and cauliflower. Drizzle with 1 tsp avocado oil and season with salt and pepper. Roast for 15 minutes, or until slightly browned.

    Top view of chopped fresh cauliflower and broccoli florets on a wooden cutting board
  2. MAKE THE CREAMY SAUCE: Meanwhile, melt vegan butter OR avocado oil over medium heat then sprinkle in flour and cook for 1 minute while whisking constantly. Slowly pour in broth, then milk, coconut cream & cream cheese while whisking to prevent lumps from forming. Continue cooking and stirring until sauce reduces and thickens - taste and season with salt, pepper, onion salt & garlic powder as needed. 

    POUR the thickened sauce over the roasted broccoli and cauliflower.

    Top view of creamy dairy free sauce in a white skillet with a wooden spoon on a wooden cutting board on a grey background
  3. TOP with nut crumbs followed by crushed crackers OR pork rinds mixture or Parmesan crisps.

    BAKE for 13-18 minutes, or until bubbly and topping is golden.

    Top view of unbaked keto cauliflower gratin in a blue oval casserole dish on a wooden board
  4. Garnish with fresh parsley and serve hot.

    Top view of baked keto cauliflower gratin in a blue oval casserole dish on a wooden board
Nutrition Facts
Cauliflower Gratin
Amount Per Serving (1 serving)
Calories 215 Calories from Fat 180
% Daily Value*
Fat 20g31%
Carbohydrates 7g2%
Fiber 3g12%
Sugar 2g2%
Protein 6g12%
* Nutrition facts are provided as a courtesy using the WPRM recipe calculator. It is best to make your own calculations to ensure accuracy. We expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website. Percent Daily Values are based on a 2000 calorie diet.