Place sesame seeds in a small skillet and set pan over medium-low heat. Cook 1 to 3 minutes, until just golden brown, shaking the pan frequently to prevent burning. Remove from heat and set aside.
Place lettuce in a large bowl (or divide onto individual dishes). Top lettuce with beef, carrots, scallions and cilantro.
In a small bowl, whisk together broth, vinegar and sesame oil. Season with salt and pepper, to taste. Pour mixture over salad, and top with toasted sesame seeds. Serve immediately.
Copyright 2006, Robin Miller, All Rights Reserved