Preheat the oven to 375 degrees F (190 degrees C). Grease a large pizza pan.

On a lightly floured surface, roll bread dough out into a large circle about 18-inches in diameter; transfer to the prepared pizza pan. Build up the edges, and prick the center all over with a fork so it doesn't form a dome when baking.

Bake for 20 to 25 minutes in the preheated oven, or until golden.

Spread 1/2 of the salad dressing over hot crust. Sprinkle with 1/2 of the Swiss cheese. Arrange corned beef on top of cheese, then drizzle with remaining salad dressing. Top with sauerkraut and remaining Swiss cheese. Sprinkle with caraway seed.

Bake for another 10 minutes in the preheated oven, until cheese melts and toppings are heated through. Sprinkle with chopped pickle. Let stand for 5 minutes before slicing.