Step 1

Preheat the oven to 375°F (190°C).

Step 2

Rinse the sushi rice in cold water and drain. In a medium saucepan, combine the rice and water. Bring to a boil over high heat. Reduce the heat to low, cover and simmer for 20 minutes or until the water is absorbed.

Step 3

In a small saucepan, combine the rice vinegar, sugar and salt. Cook over medium heat until the sugar dissolves.

Step 4

In a large mixing bowl, combine the cooked rice and vinegar mixture. Stir until well combined.

Step 5

In another mixing bowl, combine the mayonnaise, soy sauce, sriracha, garlic powder, onion powder, ground ginger and black pepper. Stir until well combined.

Step 6

Add the avocado, cucumber, green onions, nori sheets and sesame seeds to the mayonnaise mixture. Stir until well combined.

Step 7

Add the mayonnaise mixture to the rice mixture. Stir until well combined.

Step 8

Transfer the mixture to a baking dish. Bake for 20 minutes or until the top is golden brown.

Step 9

Remove from the oven and let it cool for 5 minutes before serving.