Saute garlic and onion in oil until onion is transparent and set aside. Cut tomatoes into chunks and combine with olives, parsley, basil, and peppercorn and set aside.
Top dough crust with onions, tomato mixture, and goat cheese. Drain anchovies (reserving oil) and add to pizza. Drizzle with anchovy oil. Bake in preheated 500° F oven on pizza stone for 8-10 minutes or until crust is golden brown. Remove from oven and cool on a wire rack for 2-3 minutes before cutting into wedges and serving.