Asian Steak Salad With Cucumber And Napa Cabbage

Name: Asian Steak Salad With Cucumber And Napa Cabbage
Ingredients: 1 pound flank steak; 1 English cucumber halved lengthwise and thinly sliced on the diagonal; 1/4 cup fresh lime juice from 2 limes; 1/2 teaspoon red pepper flakes; 1 tablespoon toasted sesame oil; 1 garlic clove crushed through a press; 1/4 cup rice vinegar; 1/4 cup coarsely chopped unsalted roasted peanuts; 2 tablespoons vegetable oil such as safflower; 1/2 head napa cabbage 1 pound thinly sliced crosswise; 1/4 cup soy sauce