Prepare the Sushi Rice: Rinse sushi rice under cold water until the water runs clear. In a pot, combine the rinsed rice and water. Bring to a boil, then reduce heat to low. Cover and cook for 18-20 minutes or until rice is tender. Turn off the heat and let it sit, covered, for another 10 minutes.
Season the Rice: In a small bowl, mix rice vinegar, sugar, and salt until dissolved. Once the rice is fluffily cooked, transfer it to a large bowl and gently fold in the vinegar mixture. Let the rice cool slightly.
Make the Filling: In a mixing bowl, combine the shredded imitation crab meat, diced avocado, chopped cucumber, softened cream cheese, mayonnaise, and sriracha. Adjust heat by adding more sriracha if desired. Mix well until all ingredients are fully combined.
Assemble the Sushi Bake: Preheat your oven to 350°F (175°C). In a baking dish (around 9x9 inches), spread the seasoned sushi rice evenly at the bottom, pressing it down gently. Layer the crab mixture over the rice evenly.
Bake: Place the baking dish in the preheated oven and bake for 20-25 minutes or until the top is golden and bubbly.
Garnish and Serve: Remove from the oven and let it cool for a few minutes. Sprinkle chopped green onions and sesame seeds on top, then cut into squares or scoop portions out with a spoon. Serve with strips of nori for wrapping or dipping.
Notes
Adjust the amount of sriracha to your preferred spice level.