Tamago-yaki is a savory dish featuring eggs, milk and salt. Tamago means egg in Japanese, and tamago-yaki is also known as a "Japanese egg roll".

It is also known as thick egg yakisoba or thousand-layer egg. Tamago-yaki is so popular in Japan that it is a household name and is said to be a must-have for every Japanese housewife. It is often found in sushi and bento.

Eggs contain almost all the nutrients necessary for the human body, such as protein, fat, lutein, lecithin, vitamins, and iron, calcium, and potassium, and have been called the "ideal nutritional reservoir.

The nutrients contained in eggs are second only to breast milk for humans. One egg contains as many calories as half an apple or half a cup of milk, but it also has 8% phosphorus, 4% zinc, 4% iron, 12.6% protein, 6% vitamin D, 3% vitamin E, 6% vitamin A, 2% vitamin B, 5% vitamin B2, and 4% vitamin B6.