You can buy thin beaf slices in some grocery shops or butchers. They may be called minute steaks or quick steaks and are a great ingredient that you can use to make a quick donburi (a rice bowl with meat and vegetable toppings). It's so fast to prepare, that you can do everything in the time it takes to cook the rice!
Japanese word tamago means an egg and word yaki usually indicates that it is fried in some kind of way — with this recipe you can make a wonderful Japanese delicacy that not only tastes great, but also is a great way to make a great-looking little dish for your breakfast or bento!
Tamagoyaki has really interesting taste and springy, delicious texture.