clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Vegan Spicy ‘Tuna’ (Tomato Tuna)

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 103 reviews

  • Author: Lisa Kitahara
  • Total Time: 11 minutes
  • Yield: 2 servings 1x


Learn how to make Spicy Vegan Tomato Tuna that is just like the real deal! Perfect for rice bowls, poke bowls, sushi, ongiri, crispy rice and more. 



Tomato Tuna

  • 23 roma tomatoes (250-300g tomato flesh).
  • 2 tbsp + 1 tsp soy sauce (35ml)
  • 1 1/2 tsp rice vinegar (6ml)
  • 1 1/2 tbsp mirin (22ml)*
  • 1 1/2 tbsp sake (22ml)*
  • 1 tbsp neutral oil (15ml)
  • 2 tsp kombu dashi granules
  • 1 sheet of roasted nori

Spicy Mayo

  • 2 tbsp vegan kewpie mayonnaise (32g)*
  • 23 tsp sriracha, to taste (10g)*
  • 3/4 tsp sesame oil (4ml)


  1. Prepare tomatoes: Bring a pot of water to a boil. Score the top of the tomatoes and then place them into the boiling water for 45-60 seconds or until the skin starts to peel off. Rotate the tomatoes to ensure even cooking. Scoop the tomatoes out and place in a bowl of ice water to cool. Peel the tomatoes and then slice in half, and then in half again (making 4 segments). Remove the inner seeds and juices from the tomatoes. You should end with a total of 250-300g of tomato flesh. 
  2. Marinate: Add soy sauce, rice vinegar, mirin, sake, oil and kombu dashi granules to a shallow dish. Add the pieces of tomato and then tear roasted nori on top. Toss everything together, cover and refrigerate for at least 3 hours (preferably overnight).
  3. Remove tomatoes from the refrigerator and then chop the tomatoes until it starts to look minced. Strain the tomatoes with a sieve to remove excess liquid. 
  4. Spicy Mayo: Mix the mayonnaise, sriracha and sesame oil in a bowl. Taste and adjust to desired flavour. Add the tomato tuna and mix to combine. Serve as desired and enjoy!


  • *Mirin and sake can be omitted but please note the flavour will be slightly different. Add 1/2 tsp of sugar. 
  • **Substitute regular vegan mayonnaise
  • ***You can use any chili sauce of choice such as sriracha, sambal oelek or chili bean paste. 
  • *Prep time does not include marinating time
  • Helpful Equipment
  • Nutritional Information Disclaimer: Nutrition information is a rough estimate calculated on an online tool (Cronometer). 
  • Prep Time: 10 minutes
  • Cook Time: 1 minute
  • Category: entree
  • Method: stove top
  • Cuisine: vegan, japanese


  • Serving Size: 1 serving