On a lightly floured surface, roll bread dough into a 14-inch circle. Transfer to a greased 13-inch pizza pan. Build up edges slightly. Prick generously with a fork. Bake in a 375 degree F oven for 20 to 25 minutes or until light brown.
Spread half of the salad dressing over hot crust. Sprinkle with half of the Swiss cheese. Arrange corned beef over cheese. Drizzle remaining salad dressing over corned beef. Top with sauerkraut and remaining Swiss cheese. Sprinkle with caraway seed.
Bake about 10 minutes more or until cheese melts and pizza is heated through. Top with chopped dill pickle, if desired. Makes 6 servings.