Put the whole romaine leaves in a work bowl. Add enough of the dressing to coat the leaves and toss well. Arrange the leaves in a serving bowl with their tips up, and intersperse the pizzetta's, if desired. Sprinkle the Parmesan over all.
Place the egg yolk, mustard, anchovies, garlic, vinegar, lemon juice, and a dash of Worcestershire sauce into a salad bowl. Blend with whisk and then add the olive oil in a slow, steady stream until it is fully incorporated. If the dressing stops gets too thick, add the warm water and then continue until all the oil is added. Add the cheese and continue to blend.
Preheat oven to 375 degrees F.
Stir the garlic into the tapenade. Separate the ready made/store bought pizza dough into 1 1/2-ounce pieces and roll them out to 1/8-inch (if possible, roll out to desired thickness by using a pasta machine). Cover the top of the rolled out dough with olive paste and garlic mixture. Sprinkle the thyme on top. Lay the pecorino on top of pizzetta. Season with salt and pepper, to taste.
Bake the pizza for 15 minutes or until light brown (a cracker like thinness and texture). Let cool for about 10 minutes, and serve.
Consumption of raw or undercooked eggs, shellfish and meat may increase the risk of foodborne illness.