Cook the rice: Prepare your rice according to package directions. Fluff and let it cool slightly so it’s warm, not steaming hot.
Mix the sauce: In a bowl, whisk together mayonnaise, sriracha, soy sauce, rice vinegar, sesame oil, honey, garlic, and ginger until smooth and creamy.
Prep the tuna: Drain tuna well. Add it to the sauce and gently fold until coated.
Taste and adjust salt, heat, or acidity.
Chop the veggies: Dice cucumber, shred carrot, slice avocado and green onions. Cut nori into thin strips if using.
Assemble the bowls: Add about 1 cup rice to each bowl. Top with a generous scoop of spicy tuna, then arrange cucumber, carrot, and avocado around it.
Finish with texture: Sprinkle sesame seeds, green onions, and nori on top.
A squeeze of lime or lemon brightens everything.
Optional drizzle: Add a little extra sriracha or a touch of soy sauce over the top if you like it saucier.
Serve: Enjoy warm or at room temperature. Mix everything together when you’re ready to eat for the best bite.