Then, in your serving bowl, combine the pasta, tomatoes, onion, and pepper. Next, toss with all of the dressing but half a cup (which you will use later). If you're not serving right away, keep the salad in the fridge. Otherwise, if you're ready to serve, go ahead and add the bacon, cheese, lettuce, and parsley and toss very well. Lastly, drizzle the remaining dressing over the top and serve!