Cut the steak into thin slices 3 inches long and 2 inches wide. This can be done easily if the steak is half frozen. Mix the steak with salt, 1 TB sesame oil and the pepper; put seasonings into the meat. Set aside for 15 minutes.
Soak the scallion slices in ice water for 15 minutes. Drain well. Mix together the soy sauce and the remaining 2 teaspoons sesame oil and toss this with the scallion slices. Set aside.
Mix the chili powder, sugar and sesame seeds together. Rub this seasoning on the inside curl of the lettuce leaves. Set aside.
Grill the steak for 1 to 3 minutes until done according to taste.
Take 1 lettuce leaf put several slices of steak in the center add about 1 tablespoon of the seasoned scallions a sliver or two of garlic fold the lettuce over the steak and eat.