Egg and Tuna Oyako Donburi

Slice the onion and green onion thinly

Beat the eggs and set aside

Heat oil in a pan and sauté the onion and green onion

When the onion becomes translucent, add the canned tuna and stir-fry

Add soy sauce, mirin, sugar, and water, then bring to a boil

Pour the beaten eggs over and cover with a lid, cooking over medium-low heat until set

Serve the mixture over rice to finish