Easy Tuna Rice Balls Recipe
Introduction
These easy tuna rice balls are a quick and delicious snack or light meal. Combining creamy tuna with savory seaweed and seasoned sushi rice, they’re perfect for lunchboxes or a simple bite on the go.

Ingredients
- 2 cups prepared sushi rice
- 150 grams canned tuna
- 1 tablespoon sesame oil
- 2-3 tablespoons Japanese mayonnaise (Kewpie style)
- 1 to 1½ cups torn roasted seaweed
Instructions
- Step 1: In a large bowl, add the sushi rice, sesame oil, mayonnaise, canned tuna, and torn roasted seaweed. Mix thoroughly until all ingredients are well combined. If the mixture feels dry or lacks creaminess, add more mayonnaise to reach your preferred consistency.
- Step 2: Press the mixture flat in the bowl, then use a spatula to cut it into 8 triangular sections, similar to slicing a pizza. You can also estimate the amount needed for each rice ball without measuring precisely.
- Step 3: With clean hands or gloves, scoop up each portion and gently roll it into a tightly packed ball to hold its shape. Repeat until all portions are formed.
- Step 4: Serve the rice balls immediately for the best texture and flavor. Enjoy them on their own or with your favorite sides.
Tips & Variations
- For extra flavor, add a splash of soy sauce or a sprinkle of furikake seasoning to the rice mixture before shaping.
- Substitute canned tuna with cooked salmon or shredded chicken for a different protein option.
- If you prefer a firmer texture, chill the rice mixture briefly before shaping the balls.
Storage
Store leftover rice balls in an airtight container in the refrigerator for up to 1 day. They are best eaten fresh but can be gently reheated in the microwave for about 20-30 seconds. Avoid freezing as it affects the texture of the rice.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular mayonnaise instead of Japanese mayonnaise?
Yes, you can substitute regular mayonnaise, but Japanese mayonnaise like Kewpie has a slightly sweeter and richer flavor that complements the dish well.
How can I prevent the rice balls from falling apart?
Make sure to use sushi rice or another sticky short-grain rice and pack the balls firmly. Wetting your hands slightly before shaping can also help keep the rice from sticking and falling apart.
PrintEasy Tuna Rice Balls Recipe
These Easy Tuna Rice Balls are a delicious and simple Japanese-inspired snack, combining flavorful canned tuna, creamy Japanese mayonnaise, aromatic sesame oil, and roasted seaweed with perfectly cooked sushi rice. Ideal for quick lunches, picnics, or appetizers, these rice balls are packed with umami and easy to prepare with minimal ingredients.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 10 minutes
- Yield: 8 rice balls 1x
- Category: Snack
- Method: No-Cook
- Cuisine: Japanese
Ingredients
Rice Mixture
- 2 cups prepared sushi rice
- 150 grams canned tuna
- 1 tablespoon sesame oil
- 2–3 tablespoons Japanese mayonnaise (Kewpie style)
- 1 to 1½ cups torn roasted seaweed
Instructions
- Combine Ingredients: In a large bowl, add the prepared sushi rice, sesame oil, Japanese mayonnaise, canned tuna, and torn roasted seaweed. Mix everything thoroughly until well combined. If the mixture feels dry or not creamy enough, add more mayonnaise as needed to reach your preferred consistency.
- Shape the Mixture: Press the combined rice mixture flat in the bowl. Using a spatula, cut the mixture into 8 triangular portions, similar to slicing a pizza. Alternatively, estimate and divide the mixture evenly to form rice balls without precise measuring.
- Form the Rice Balls: With clean hands or wearing gloves, scoop each portion and gently roll it into a tightly packed ball to hold its shape securely.
- Serve and Enjoy: Serve the rice balls immediately to enjoy their optimal texture and flavor. They make a perfect standalone snack or a great addition to your favorite dishes.
Notes
- Using Kewpie mayonnaise is recommended for authentic flavor, but any Japanese-style mayonnaise works well.
- If sushi rice is not available, short-grain rice can be a substitute, but the texture may differ.
- To keep the rice balls from sticking to your hands, wet your hands lightly with water or oil before shaping.
- These rice balls are best enjoyed fresh but can be stored in the refrigerator for up to 1 day wrapped tightly.
- For added flavor, sprinkle with additional roasted seaweed or sesame seeds before serving.
Keywords: Tuna rice balls, Japanese snack, sushi rice recipe, easy rice balls, no-cook rice balls, Japanese mayonnaise, sesame oil, roasted seaweed

