How to Make It
In a small bowl, whisk the yogurt with the anchovies, garlic, lemon juice and Worcestershire sauce. Whisk in the oil and half of the cheese and season with salt and pepper.
In a large bowl, toss the romaine with half the dressing and the remaining cheese. Serve, passing the remaining dressing at the table.
First Course to Main Course: Oliver turns this into a more substantial salad with broiled, flaked salmon or grilled chicken breast.