This vibrant dinner-ready salad is inspired by the classic Cambodian dish Lok Lak (a sizzling beef stir fry served over crisp lettuce, tomatoes and onions with a Kampot pepper lime dipping sauce). In this recipe, we've switched out the stir-fried beef for succulent skirt steak skewers grilled to umami-packed perfection. The skewers are served with a bountiful salad of mixed lettuces, jammy-yol...