Cook whole egg and egg whites together into a thin omelet and slice.
Blanch spinach, squeeze very dry, and season lightly.
Sauté carrots until just tender.
Mix tuna with ½ tbsp Kewpie.
Season rice with a touch of sesame oil and salt.
Lay seaweed shiny side down and spread a very thin layer of rice over ¾ of the sheet.
Layer perilla, spinach, egg, tuna, carrot, radish, and burdock.
Roll tightly, seal with a bit of rice, brush lightly with sesame oil, and slice.
