Beat the eggs in a bowl.
Drain the oil from the canned tuna using a sieve.
Bring water and tuna to a boil in a pot.
Add cooked rice and simmer on medium-low heat, stirring occasionally.
Once the rice grains become soft, add the beaten eggs and stir gently until cooked.
Season with salt to taste.
Finish with chopped green onion and ground black pepper.