Experience a delightful fusion of flavors with this Japanese tuna rice bowl. This dish combines the delicate taste of sashimi-grade tuna with the savory notes of soy sauce, mirin, and sesame oil, all served over a bed of fluffy rice. It's a simple yet elegant meal that brings the essence of Japanese cuisine to your table.
When preparing this recipe, you may need to visit a specialty store for sashimi-grade tuna, which is crucial for its freshness and safety when consumed raw. Mirin, a sweet rice wine, might also be less common but can usually be found in the Asian section of most supermarkets. Ensure you have these ingredients to achieve the authentic taste of this dish.

Ingredients for Japanese Tuna Rice Bowl Recipe
Rice: The base of the dish, providing a neutral canvas for the other flavors.
Tuna: Sashimi-grade, ensuring it's safe to eat raw and has a delicate texture.
Soy sauce: Adds a salty, umami flavor that complements the tuna.
Mirin: A sweet rice wine that balances the saltiness of the soy sauce.
Sesame oil: Provides a nutty aroma and richness to the marinade.
Sesame seeds: Adds a subtle crunch and toasty flavor.
Green onion: Fresh and slightly pungent, it adds a burst of color and flavor.
Technique Tip for Making This Dish
To enhance the flavor of the tuna, make sure to marinate it for at least 10-15 minutes before serving. This allows the soy sauce, mirin, and sesame oil to fully penetrate the fish, giving it a richer taste. Additionally, using freshly cooked rice that's slightly warm will help to meld the flavors together more effectively.
Suggested Side Dishes
Alternative Ingredients
cooked rice - Substitute with quinoa: Quinoa is a nutritious grain that provides a similar texture and can absorb flavors well.
sashimi-grade tuna - Substitute with cooked shrimp: Cooked shrimp offers a similar protein content and a mild flavor that pairs well with the other ingredients.
soy sauce - Substitute with tamari: Tamari is a gluten-free alternative that has a similar umami flavor profile.
mirin - Substitute with rice vinegar with a pinch of sugar: Rice vinegar provides the acidity while the sugar adds the sweetness, mimicking the flavor of mirin.
sesame oil - Substitute with olive oil: Olive oil can provide a similar richness, though it lacks the nutty flavor of sesame oil.
toasted sesame seeds - Substitute with crushed peanuts: Crushed peanuts offer a similar crunch and nutty flavor.
sliced green onion - Substitute with chives: Chives provide a similar mild onion flavor and can be used as a garnish.
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How to Store or Freeze This Dish
- Allow the cooked rice to cool completely before storing. This helps prevent condensation, which can make the rice soggy.
- Store the marinated tuna and cooked rice separately to maintain the best texture and flavor.
- Place the marinated tuna in an airtight container. Ensure the container is sealed tightly to prevent any air from entering, which can cause the tuna to spoil.
- Transfer the cooked rice into a separate airtight container. If you have a vacuum sealer, use it to extend the shelf life.
- Label both containers with the date of preparation to keep track of freshness.
- Store the marinated tuna in the refrigerator for up to 24 hours. Beyond this time, the quality of the tuna may degrade.
- Keep the cooked rice in the refrigerator for up to 3 days. Reheat it in the microwave or on the stovetop with a splash of water to restore its fluffiness.
- For freezing, place the cooked rice in a freezer-safe bag or container. Flatten the bag to remove excess air and freeze for up to 1 month.
- Avoid freezing the marinated tuna as it can alter the texture and flavor. If you must freeze it, do so before marinating and thaw it in the refrigerator before use.
- When ready to serve, thaw the cooked rice in the refrigerator overnight or reheat directly from frozen in the microwave.
- Assemble the Japanese tuna rice bowl by combining the thawed or reheated cooked rice with the marinated tuna, toasted sesame seeds, and sliced green onion.
How to Reheat Leftovers
- Gently reheat the cooked rice in a microwave-safe bowl. Cover it with a damp paper towel to retain moisture and heat on medium power for 1-2 minutes. Stir halfway through to ensure even heating.
- For a stovetop method, place the cooked rice in a non-stick pan with a splash of water. Cover and heat on low, stirring occasionally until warmed through.
- Avoid reheating the sashimi-grade tuna directly as it may compromise its texture and flavor. Instead, allow it to come to room temperature by letting it sit out for about 15-20 minutes before serving.
- If you prefer a warm topping, lightly sear the tuna in a hot pan with a touch of sesame oil for just a few seconds on each side. This will give it a slight warmth without overcooking.
- Reassemble your bowl by placing the reheated rice in a bowl, topping it with the room temperature or lightly seared tuna, and finishing with toasted sesame seeds and sliced green onion.
Enjoy your rejuvenated Japanese Tuna Rice Bowl!
Essential Tools for This Recipe
Rice cooker: For cooking the rice to perfection, ensuring it is fluffy and well-cooked.
Sharp knife: Essential for slicing the sashimi-grade tuna into bite-sized pieces.
Cutting board: Provides a stable surface for slicing the tuna and green onion.
Mixing bowl: Used to combine the soy sauce, mirin, and sesame oil, and to marinate the tuna.
Measuring spoons: To accurately measure the soy sauce, mirin, and sesame oil.
Serving bowls: For dividing the cooked rice and assembling the final dish.
Spoon: Useful for mixing the marinade and for serving the rice into bowls.
Toaster or skillet: Optional, for toasting the sesame seeds if they are not pre-toasted.
Chopsticks or fork: For eating the delicious tuna rice bowl.
Time-Saving Tips for Making This Dish
Prepare ingredients in advance: Slice the tuna and mix the sauce ingredients while the rice is cooking.
Use a rice cooker: A rice cooker can save you time and ensure perfectly cooked rice every time.
Pre-toast sesame seeds: Toast the sesame seeds in bulk and store them for future use.
Batch cook rice: Cook extra rice and store it in the fridge for quick assembly of future meals.

Japanese Tuna Rice Bowl Recipe
Ingredients
Main Ingredients
- 1 cup Rice cooked
- 200 grams Tuna sashimi-grade
- 2 tablespoons Soy Sauce
- 1 tablespoon Mirin
- 1 teaspoon Sesame Oil
- 1 teaspoon Sesame Seeds toasted
- 1 piece Green Onion sliced
Instructions
- 1. Cook the rice according to the package instructions.
- 2. While the rice is cooking, slice the tuna into bite-sized pieces.
- 3. In a mixing bowl, combine soy sauce, mirin, and sesame oil.
- 4. Add the tuna to the bowl and mix gently to coat the tuna with the sauce.
- 5. Once the rice is cooked, divide it into two bowls.
- 6. Top the rice with the marinated tuna, toasted sesame seeds, and sliced green onion.
Nutritional Value
Keywords
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