In a Large Bowl, toss the lettuce, endive, arugula, tomatoes, and onion to combine. Add half of the cheese and toss the salad with enough vinaigrette to coat. Season the salad with salt and pepper to taste. Divide the salad equally among 4 plates and top with the steak slices. Drizzle more vinaigrette over the steak slices and sprinkle with the remaining cheese. Serve immediately.