Wash the romaine lettuce and remove excess water. Cut the sausage lengthwise and grill it to match the size of other ingredients.

Season the egg with a pinch of salt and cook it until semi-soft. Prepare the cooked rice.

Place a sheet of roasted seaweed on a piece of plastic wrap. Layer the ingredients in the following order: rice, romaine lettuce, mayonnaise, fried egg, grilled sausage, and another layer of rice.