Grilled White Pizza with Clams and Bacon

Preheat the grill to medium-high heat (350 ° to 400 °). Combine the first 3 ingredients, 1 tablespoon of oil, and 1 tablespoon of lemon juice in a small bowl. Let stand for 15 minutes.Sprinkle semolina evenly on a large baking sheet without sides. Place the pizza dough on a baking sheet and roll out in a 14-inch circle.Brush the grill rack with oil and place the pizza dough on it. Cook on the grill, covered, for 2 minutes or until grill marks appear. Place the baking sheet under the dough on a wire rack and reduce the heat to medium. Sprinkle the mozzarella batter evenly, leaving a 3/4-inch-thick rim. Top with the clam mixture, parmesan reggiano and bacon. Cook on the grill, covered, for 8 minutes or until the cheese is melted and the crust is lightly browned.Meanwhile, combine the parsley, salt, and remaining 1/2 teaspoon oil and lemon juice in a small bowl. Remove the pizza from the grill and sprinkle the parsley mixture on top. Serve immediately.