Toss the fish with soy sauce, sesame oil, chopped green onions, and chili sauce in a medium bowl. You can let it marinate for 15-30 minutes before serving or add it to the bowls right away.
In a bowl, add sushi rice, fish, cucumber salad, and toppings of choice. Drizzle over extra sauce. Enjoy!
Cucumber Salad
Slice cucumber into thin slices using a mandolin or a sharp knife. Toss with rice vinegar and salt in a medium bowl. Set aside and add to the bowl when ready.
Notes
Once marinated, fish should be used within 24 hours to retain freshness.