Rinse sushi rice under cold water until the water runs clear. Cook with water in a rice cooker or pot for 18 minutes, then let rest for 10 minutes.
Salmon Topping
Press the seasoned rice into the bottom of a parchment-lined 8×8-inch baking dish. Scatter nori and furikake over the rice.
Combine flaked salmon, mayonnaise, Sriracha, and soy sauce in a bowl. Spread evenly over the rice layer.
Bake at 375°F for 8–10 minutes until edges bubble. Broil on high for 2–3 minutes until the top is lightly golden.
Remove from oven and let rest for 5 minutes. Garnish with sliced green onions before serving.
Notes
After baking, top with avocado slices or drizzle with wasabi mayo for extra flavor.Leftovers store well in an airtight container in the fridge for up to 3 days; reheat covered at 350°F for 10 minutes to preserve moisture.