I recognized the rice and the egg but not some of the other stuff.

I guess it will remain a mystery!

ご飯 rice
1合
にんにく　garlic
6カケ
ネギ green onions
5本位
卵
3個 eggs
豚肉（ハムや牛肉でも） meat (optional: chicken, ham or beef )
100g
サラダ油（米油）salad oil (rice oil)
大さじ2
☆醤油 soy sauce *
小さじ1
☆日本酒 Japanese sake*
小さじ1

Most of my experience is with sushi, but on the few occasions many years ago that I've eaten hibachi, I don't recall there being garlic involved. I wonder how common garlic is in general with Japanese cooking.

You can buy fresh cloves, dried chips, garlic paste, and pickled garlic at most any supermarket in Japan.

You can get an idea of how garlic is used in Japanese cooking by checking out this website:

https://www.sbfoods.co.jp/yamitsuki/ninnikuseabura/

with all that minced garlic on it. Is that common? It looks like they took some regular dishes and just spooned some minced garlic on top, to sell the garlic.

I watch a couple of food programs on NHK World Japan (Lunch On, Bento Expo) and I've never seen garlic used, at least not that I recall.

I remember reading in a Clavell novel that Koreans were referred to as "Garlic Eaters" so I wonder if it has been imported into the cuisine from there at some point, and how common it's use is in traditional dishes, or if it's localized.

Pickled garlic sounds interesting!