Spicy Thai Beef Salad (Yum Nuea)

I think I snagged this, or something resembling this, out of a magazine but it was too long ago to remember where.

London broil or skirt steak
fresh minced Ginger
1 Bunch of spring onions, minced including green part
1 small Red Onion
3-4 medium tomatoes
3 serrano peppers
Bunch of cilantro
1 large or 2 medium cucumbers
1/4 cup Fish sauce
1/4 cup lime juice
1 tbsp Dark soy sauce
1 tbsp sesame oil
3 leaves of red leaf or romano lettuce

» Score the beef and let sit in a marinade of soy sauce, sesame oil, ginger and hot peppers. Broil it until medium to well-done.
» In a large bowl, combine the tomatoes (cut into wedges), cucumber (de-skinned, halved and sliced finely), red onion (halved and very finely sliced), lettuce (washed, dried and torn into small pieces), and a hefty bunch of cilantro (loosely chopped).
» In a small mixing bowl, create the dressing by combining: fish sauce, lime juice, soy sauce, 2-4 tbsp fresh minced ginger, serrano peppers (halved, seeded and finely chopped), sesame oil, and for a bit more kick, I sometimes add in a touch of Rice Wine Vinegar.
» Finely slice the beef (and halve the larger pieces), add to salad and mix in dressing. Let the salad sit for a bit so that the beef marinates further in the dressing.