Preheat your oven to 400°F. Grab a scissor and cut your nori sheets into four equal squares.
Toss your cubed salmon in a bowl with all of the rest of the salmon ingredients and coat. Marinate for up to 4 hours.
To each nori square, add about 1 heaping tablespoon of rice and spread out slightly. Transfer the square to your muffin slot, pushing down gently to center the rice in the middle with the edges coming up along the sides of the slot. Grab out 4-5 salmon cubes and fill each muffin slot. Transfer the pan to your oven and bake for 15-17 minutes. Broil, if needed, at the end, to get a little tan on the salmon .. 1-2 minutes.
Remove allow to cool slightly and top with your avocado, sesame seeds and drizzle of spicy mayo.