In the same hot pan that you cooked the spam in, ladle out ¼ of the egg mixture into it. Swirl the pan until the egg mix covers the bottom of the pan. Sprinkle some green onions over the egg. The egg cooks quickly, so as soon as the egg starts to bubble, fold the egg into a roll (try to match the same width as the spam).

Repeat step 3, until you have 4 mini omelettes.

To assemble, place the musubi maker rectangle over the center of a flat piece of seaweed. Pack down the bottom layer of rice (about ½ inch thick). Sprinkle some furikake over the rice layer, then add sriracha and mayo to taste. Place a layer of spam over the rice, then place an omelette on top of the spam. Pack on another layer of rice and push it all down so that it is tightly packed. Carefully remove the musubi maker. Slightly wet one edge of the seaweed sheet and wrap it around the rice block to meet its other edge.