Whisk together the first four ingredients in a medium bowl. Add tuna and toss to combine. Set aside while you prepare the remaining ingredients.
Divide warm rice between bowls. Top with tuna mixture, cucumber, edamame, avocado, scallions, and jalapeno. Sprinkle on sesame seeds and lime zest. Enjoy immediately.
Notes
*** If you aren’t able to find yuzu juice, a good substitute is Meyer lemon juice or a bit of lime juice and orange juice combined. Not a problem! Variations