Wash the cucumber and peel it using a peeler.

Slice the beef into thin strips or use pre-sliced beef for convenience.

Cut the cucumber into thin slices and sprinkle with a pinch of salt. Let it sit for 10 minutes.

Prepare the beef marinade by mixing soy sauce, sugar, minced garlic, sesame oil, sesame seeds, and a pinch of salt.

Heat a pan with a small amount of cooking oil and stir-fry the marinated beef.

Once the beef is almost cooked, add the salted cucumber slices.

Quickly stir-fry the beef and cucumber together until fully cooked.