Cauliflower and chicken casserole (gratin)

With a ton of deliciousness, this easy cauliflower and chicken casserole makes a hearty one-dish center piece of any meal.
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This Recipe includes

Main ingredients:

cauliflower Cauliflower (chopped florets)
chicken Chicken filets or thighs
cheese Grated cheese such as gruyère, emmental, or cheddar.
cream Heavy cream or crème fraiche

Spices, herbs and flavoring ingredients:

parsley Pinch of dried parsley leaves
nutmeg Grated nutmeg powder
garlic powder Pinch of garlic powder or flakes
onion powder Onion powder for seasoning
salt and pepper Salt and pepper

Why we love it

Known as Gratin de chou-fleur au poulet in French, this cauliflower and chicken casserole is a French classic. One of the main reasons is because it is so easy to make: meat and veggies all in one dish, and all at the same time!

The cauliflower contributes a subtle nutty taste while the chicken adds the savory protein ingredient. When cooked together in a casserole, the flavors blend and complement each other.

With cream, cheeses, herbs and spices, all cooking together, it all just comes together wonderfully. Considered a classic comfort dish in France, this is one dish warms the insides. It is perfect for those cozy Sunday meals or warming up on a cold day.

Another reason why it is well-loved is that the ingredients are readily available and likely already in your pantry. This makes it a convenient dish to prepare, whether you’re an experienced cook or a beginner in the kitchen.

The versatility of this dish is also a major draw. You can experiment with various herbs, spices, and cheeses to create a dish that satisfies your personal liking.

So whether cooking for a family gathering or a dinner party, you can be sure that this protein-filled cauliflower and chicken casserole is going to be a hit!

What to serve with it?

This delicious cauliflower and chicken casserole can be served by itself, but you can also serve it with a light appetizer like this zucchini flan or this garlic and cheese country bread.

You can also serve it with rice (I use my rice cooker at the same time), pasta or even quinoa.


What drinks to serve with it?

For drinks, this cauliflower and chicken casserole gratin can be served with a light white wine from the Loire or the Burgundy.

If you don’t like white wine, try a red wine a light Beaujolais. You can read more about French wines here.


How to store it?

You can prepare this delicious cauliflower and chicken casserole in advance, and even keep it overnight in the fridge. Let it cool, and then place in an airtight glass container.

I wouldn’t recommend freezing it however, as the cheese may not do well in the freezer.


Similar recipes

chicken gratin with cauliflower

Cauliflower and chicken casserole (gratin)

Nassie Angadi
Make this chicken and cauliflower gratin quickly in the oven, with this easy recipe that makes a healthy and wonderful dinner.
5 from 3 votes
Prep Time 5 minutes
Cook Time 55 minutes
Total Time 1 hour
Course Main dishes
Cuisine French
Servings 4
Calories 559 kcal


  • 3-4 pieces of fresh chicken *
  • 2 cups of chopped fresh cauliflower florets *
  • 1/2 cup of shredded cheese eg. cheddar, gruyere, emmental, etc.
  • 2 cups of heavy cream or crème fraiche


  • 1 teaspoon of garlic powder
  • 1 teaspoon of grated nutmeg
  • 1 teaspoon of onion powder
  • 1 teaspoon of dried parsley
  • pinch of salt and pepper to taste


  • Chop the cauliflower into small florets.
  • Preheat the oven to 360°F (180°C).
  • In a large casserole dish, add the cauliflower and chicken and add the all the spices on top. (Do not add the cream or the cheese.)
  • Lightly mix so that the spices cover the cauliflower florets and chicken.
  • Place the casserole in the oven for about 45 minutes or until the chicken looks cooked. (Cut into the chicken to make sure, if necessary.)
  • Take the tray carefully out of the oven, and add in the cream and cheese on top.
  • Place the casserole dish back in the oven and cook for another 10 minutes or until the cheese looks melted.
  • Serve while warm.


* If using frozen chicken, use frozen cauliflower and increase cooking time by 30 minutes at 360°F (180°C).


Serving: 1gCalories: 559kcalCarbohydrates: 8gProtein: 13gFat: 54gSaturated Fat: 33gPolyunsaturated Fat: 17gTrans Fat: 2gCholesterol: 177mgSodium: 180mgFiber: 2gSugar: 5g

Please note: We are not certified nutritionists and these estimates are approximate. Each individual’s dietary needs and restrictions are unique to the individual.

You are ultimately responsible for all decisions pertaining to your health. This website is written and produced for entertainment purposes only.

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If you enjoyed that, check out our other classic French recipes that are easy to prepare. Bon appétit and à bientôt !

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