I ate lots of Lok Lak on a recent holiday to Cambodia. It's similar to Vietnamese Shaking Beef although the Cambodians don't like to admit that. In Cambodia it might come with chips (fries) and a fried egg or rice-I liked the rice option. You eat it by wrapping portions of the meat and salad ingredients in a lettuce leaf, then dipping that in the dipping sauce (the best part of it I reckon). Sometimes the meat is sliced, sometimes it's cubed-I prefer slices. Semi ripe tomatoes are preferred to ripe ones, but use what you have!