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Chicken gratin served in a ramekin with melting cheese and fresh parsley sprinkled on top.

Japanese Chicken Gratin

Rich and creamy Japanese Chicken Gratin recipe is a simple and delicious dish. Cauliflower rice, chicken and mushrooms are topped with a creamy white sauce, then topped with shredded cheese and baked until bubbly and melting.
Course Main Course
Cuisine Asian Fusion, Japanese
Keyword cauliflower au gratin recipe, chicken au gratin, chicken gratin, difference between au gratin and scalloped potatoes
Prep Time 20 minutes
Cook Time 15 minutes
Total Time 35 minutes
Servings 2
Calories 850kcal



  • 3/4 lbs Chicken Thigh boneless / skinless
  • 1/3 Cup Chopped Onion
  • 1/3 Cup Baby Bella Mushroom
  • 1 Cup Cauliflower Rice
  • 1/8 tsp Salt
  • 1/8 tsp Black Pepper
  • 1 tbsp Butter
  • 1 oz Unflavored Pork Rinds 2 tbsp if using Pork Panko or bread panko
  • 1/4 Cup Sharp Cheese we used sharp cheddar


  • 1 tbsp Butter
  • 1/2 Cup Heavy Cream
  • 1 tsp Soy Sauce
  • 1 tsp Parmesan Cheese


  • Gather all the ingredients.
    Japanese Chicken Gratin Recipe (1)
  • Dice onions and set aside.
    Japanese Chicken Gratin Recipe (2)
  • De-stem baby bella mushroom, slice and set aside.
    Japanese Chicken Gratin Recipe (4)
  • Cut chicken into bite size pieces around 1/2 x 1/2 inch and set aside.
    Japanese Chicken Gratin Recipe (5)
  • Pour Unflavored Pork Rinds into a food processor and pulse until ground into very fine crumbs. You can also use your hands to crush the pork rinds if you don’t have a food processor. Note - skip this step if you are using Pork Panko or bread panko.
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  • In a large fry pan, add 1 tbsp butter on medium heat. Once the butter is melted, add onions and coat with butter.
    Japanese Chicken Gratin Recipe (30)
  • Turn up the heat to medium high and add the chicken. Cook for 2-3 while occasionally stirring.
    Japanese Chicken Gratin Recipe (31)
  • Add mushroom, cauliflower rice and lightly sprinkle salt and pepper.  Cook for another 1-2 minutes until chicken is cooked through and set aside.
    Japanese Chicken Gratin Recipe (33)
  • In a new fry pan, add 1 tbsp butter on low heat until melted. Once melted, add Soy Sauce, Parmesan cheese and slowly add in heavy cream. Continuously mix on low heat. The sauce should thicken after 2-4 minutes. Once the preferred thickness is reached, remove from heat.
    Japanese Chicken Gratin Recipe (36)
  • Place gratin mix inside a ramekin (if you rather do a family style, you can throw it all in an oven glass pan). Drizzle the desired amount of sauce onto the gratin mix. We prefer about 2 tbsp per ramekin. Sprinkle pork rinds (or bread panko) on top followed by a generous sprinkle of sharp cheese.
    Japanese Chicken Gratin Recipe (38)
  • Place oven on broil and rearrange rack to be around 6-8" from the heating element (on our oven, it is the 2nd slot from the top). Place the tray in the CENTER of the oven and broil gratin until cheese is melted, which should be around 2-3 minutes.



Calories: 850kcal | Carbohydrates: 8g | Protein: 42g | Fat: 73g | Saturated Fat: 32g | Cholesterol: 338mg | Sodium: 669mg | Potassium: 926mg | Fiber: 2g | Sugar: 2g | Vitamin A: 1443IU | Vitamin C: 39mg | Calcium: 115mg | Iron: 2mg