Remove excess blood from the beef brisket using paper towels to reduce any unpleasant smell.

Marinate the beef brisket with 2 tbsp mirin and a pinch of black pepper. Let it rest in the refrigerator for 10 minutes.

Prepare the oriental dressing by mixing 4 tbsp soy sauce, 4 tbsp vinegar, 0.5 tbsp minced garlic, 1 tbsp sesame oil, 2 tbsp olive oil, and 1 tbsp sesame seeds.

Mix the dressing ingredients thoroughly and set aside.

Take the marinated beef brisket out of the refrigerator and pan-fry it until golden brown.

Toss the salad greens with the prepared dressing gently. Alternatively, you can drizzle the dressing over the greens when serving.