Japanese Doria is a delightful fusion dish that combines Western-style gratin with Japanese flavors. This comforting casserole features a creamy white sauce, tender chicken, and savory mushrooms, all baked to perfection with a golden, cheesy topping. It's a perfect dish for a cozy dinner or a special occasion.
While most of the ingredients for Japanese Doria are common, you might need to pay attention to the type of mushrooms you choose. Shiitake or button mushrooms work well, but feel free to use your favorite variety. Additionally, ensure you have butter and flour on hand for the white sauce, as these are essential for achieving the right consistency.

Ingredients For Japanese Doria Recipe
Rice: Cooked rice serves as the base of this dish, providing a hearty and filling component.
Chicken breast: Diced chicken breast adds protein and a tender texture to the casserole.
Mushrooms: Sliced mushrooms bring an earthy flavor and umami richness to the dish.
Onion: Chopped onions contribute a sweet and savory depth to the overall flavor.
Butter: Butter is used to create the roux for the white sauce, adding a rich and creamy element.
Flour: Flour is combined with butter to thicken the white sauce, ensuring a smooth and velvety texture.
Milk: Milk is the base of the white sauce, providing creaminess and a mild flavor.
Cheese: Shredded cheese is sprinkled on top, creating a golden and bubbly crust when baked.
Salt: Salt is used to season the dish, enhancing the flavors of all the ingredients.
Pepper: Pepper adds a hint of spice and balances the richness of the dish.
Technique Tip for This Recipe
When making the white sauce, ensure you gradually add the milk to the butter and flour mixture while stirring constantly. This helps to prevent lumps from forming and creates a smooth, creamy consistency. Additionally, when cooking the chicken, onions, and mushrooms, make sure they are evenly cooked and well-seasoned before mixing with the rice. This ensures that every bite of the doria is flavorful and well-balanced.
Suggested Side Dishes
Alternative Ingredients
cooked rice - Substitute with quinoa: Quinoa provides a similar texture and is a healthier alternative with more protein and fiber.
chicken breast - Substitute with tofu: Tofu is a great vegetarian option that absorbs flavors well and provides a similar protein content.
mushrooms - Substitute with zucchini: Zucchini offers a similar texture and can absorb the flavors of the dish, making it a good substitute.
onion - Substitute with leeks: Leeks have a milder flavor and can add a subtle sweetness to the dish.
butter - Substitute with olive oil: Olive oil is a healthier fat option and can provide a similar richness to the dish.
flour - Substitute with cornstarch: Cornstarch can thicken the sauce similarly to flour and is gluten-free.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that can provide a similar creamy texture.
shredded cheese - Substitute with nutritional yeast: Nutritional yeast offers a cheesy flavor and is a great vegan alternative.
salt - Substitute with soy sauce: Soy sauce can add a similar salty flavor along with a bit of umami.
pepper - Substitute with cayenne pepper: Cayenne pepper can add a similar heat with an extra kick of spice.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
- Allow the Japanese Doria to cool completely before storing. This prevents condensation, which can make the dish soggy.
- Transfer the cooled doria into an airtight container. If you plan to freeze it, use a freezer-safe container or heavy-duty aluminum foil.
- Label the container with the date and contents. This helps you keep track of how long it has been stored.
- For refrigeration, place the container in the fridge. The doria can be stored for up to 3-4 days.
- For freezing, ensure the container is sealed tightly to prevent freezer burn. The doria can be frozen for up to 2-3 months.
- When ready to reheat, if refrigerated, transfer the doria to an oven-safe dish and cover with aluminum foil. Reheat in a preheated oven at 350°F (175°C) for about 20-25 minutes, or until heated through.
- If frozen, thaw the doria in the refrigerator overnight before reheating. Alternatively, you can reheat directly from frozen by baking at 350°F (175°C) for 45-50 minutes, or until hot and bubbly.
- For a quicker option, you can microwave individual portions. Place the doria in a microwave-safe dish, cover with a microwave-safe lid or plastic wrap, and heat on medium power for 3-5 minutes, stirring halfway through.
- Always check that the doria is heated thoroughly before serving. The internal temperature should reach at least 165°F (74°C) to ensure it is safe to eat.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover Japanese Doria in an oven-safe dish.
- Cover the dish with aluminum foil to prevent the cheese from drying out.
- Heat for about 15-20 minutes, or until the rice and chicken are heated through.
- Remove the foil for the last 5 minutes to let the cheese get bubbly and slightly golden.
Microwave Method:
- Transfer a portion of the Japanese Doria to a microwave-safe dish.
- Cover the dish with a microwave-safe lid or a damp paper towel to keep the moisture in.
- Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat for an additional minute if necessary.
Stovetop Method:
- Place the Japanese Doria in a non-stick skillet over medium-low heat.
- Add a splash of milk or chicken broth to keep the dish from drying out.
- Cover the skillet with a lid and heat for about 5-7 minutes, stirring occasionally.
- Once the rice and chicken are heated through, remove the lid and let the cheese melt and get slightly crispy.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the Japanese Doria in an air fryer-safe dish.
- Cover the dish with aluminum foil to keep the cheese from burning.
- Heat for about 10-12 minutes, checking halfway through to ensure even heating.
- Remove the foil for the last 2-3 minutes to let the cheese get bubbly and golden.
Best Tools for This Recipe
Oven: Used to bake the doria at 400°F (200°C) until the cheese is golden and bubbly.
Saucepan: Used to melt the butter, add flour, and gradually mix in milk to create the white sauce.
Pan: Used to cook the chicken, onions, and mushrooms until they are fully cooked and softened.
Baking dish: Used to spread the rice mixture and pour the white sauce over it before baking.
Wooden spoon: Used for stirring the butter and flour mixture, as well as the white sauce.
Spatula: Useful for mixing the cooked rice with the chicken and vegetables.
Measuring cups: Used to measure out the rice, chicken, mushrooms, onions, butter, flour, milk, and shredded cheese.
Knife: Used to dice the chicken breast and chop the onions.
Cutting board: Used as a surface for dicing the chicken and chopping the onions.
Mixing bowl: Used to combine the cooked rice with the chicken and vegetables before spreading it in the baking dish.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
How to Save Time on Making This Dish
Pre-cook the chicken: Cook the chicken breast in advance and store it in the fridge. This will save you time when assembling the dish.
Use pre-sliced vegetables: Buy pre-sliced mushrooms and chopped onions to cut down on prep time.
Make the sauce ahead: Prepare the white sauce a day before and refrigerate it. Reheat gently before using.
Cook rice in bulk: Cook extra rice earlier in the week and use the leftovers for this recipe.
Shred cheese in advance: Shred the cheese ahead of time and store it in an airtight container.

Japanese Doria Recipe
Ingredients
Main Ingredients
- 2 cups Cooked Rice
- 1 cup Chicken Breast, diced
- 1 cup Mushrooms, sliced
- 1 cup Onion, chopped
- 2 tablespoons Butter
- 2 tablespoons Flour
- 2 cups Milk
- 1 cup Shredded Cheese
- to taste Salt and Pepper
Instructions
- Preheat your oven to 400°F (200°C).
- In a saucepan, melt the butter over medium heat. Add the flour and stir continuously for about 2 minutes.
- Gradually add the milk, stirring constantly until the sauce thickens. Season with salt and pepper.
- In a separate pan, cook the chicken until no longer pink. Add the onions and mushrooms, cooking until softened.
- Mix the cooked rice with the chicken and vegetables. Spread this mixture in a baking dish.
- Pour the white sauce over the rice mixture and top with shredded cheese.
- Bake in the preheated oven for about 20 minutes, or until the cheese is golden and bubbly.
Nutritional Value
Keywords
Suggested Appetizers and Desserts
More Amazing Recipes to Try 🙂
- Japanese Milk Bread Recipe50 Minutes
- Japanese Pulled Pork Recipe4 Hours 15 Minutes
- Dorayaki Recipe30 Minutes
- Japanese Tomato Salad Recipe10 Minutes
- Japanese Ramen Broth Recipe2 Hours 15 Minutes
- Japanese Pork and Eggplant Recipe35 Minutes
- Japanese Spam Recipe25 Minutes
- Japanese Chicken Salad Recipe30 Minutes
Leave a Reply