Preheat oven to 450°F. Divide dough into 2 pieces and roll each into a 12 to 14-inch circle on a lightly floured board. Place on 2 parchment-lined baking sheets or pizza pans. Top evenly with cheese, potatoes, garlic, steak and blue cheese. Bake for 10 to 12 minutes or until cheese is lightly browned. Remove from oven and sprinkle with rosemary.