Preheat oven to 400℉.
In a bowl, mix together the Japanese mayo, sriracha, lemon juice, and garlic.
Add the cubed salmon to the bowl. Make sure the salmon is well coated. Set aside.
Cut the nori/seaweed sheets into 8-inch squares.
Grab a 12-cup muffin pan. Line each cup with one square of the nori/seaweed sheet. Gently press nori down into the cups.
Place 2 tbsp of the sushi rice inside the nori.
Top with 5-6 cubes of salmon.
Assemble the rest of the cups. Once all of the cups are assembled, bake for 12-15 minutes, or until salmon is cooked through and tops are slightly browned.
Gently remove each salmon cup to a plate. Sprinkle green onions and furikake on top. Drizzle cups with unagi and sriracha. Enjoy!