I use the term "Korean" loosely here because even though I live next door to Korea, and I have been there as well, I don't know for sure whether these are 100% authentic. No matter, they're pretty darn tasty anyway. Try 'em, I think you'll like 'em, too.
A friend of ours, before she and her hubby moved back to America, had lived in the apartment we moved into when hubby and I first came to Japan together. Our friend left a few of her recipes for us, and this marinated pork was one of them.
400 g thinly sliced pork
3 T soy sauce
2 T sake
2 t grated fresh ginger
(And I add garlic and sesame seeds because even if it's faux Korean, you gotta have loads of garlic and sesame.)
Marinate the pork for at least ten minutes, then fry it up in a bit of oil in a pan.
I serve it with lettuce, add a bit of rice in the lettuce cup along with the meat and some kimchi and extra sesame seeds. If you have some way to keep the meat warm at the table, even better.
And if you don't have access to kimchi, Japanese pickles work well, too.