Move oven rack to upper-middle position and preheat to 475 degrees F. Line standard-size baking sheet with foil; set aside. In small microwave-safe bowl combine oil, garlic, 2 tablespoons basil, and pepper flakes. Microwave on high until fragrant, about 45-60 seconds.
Brush half of oil mixture over crust and edges of bread. Arrange bread pieces cut-side up on prepared baking sheet. Sprinkle Parmesan evenly over bread pieces and bake until cheese just begins to brown, about 2-3 minutes.
In small bowl whisk together pizza sauce, remaining basil, and remaining oil mixture. Spread sauce evenly over bread pieces, and sprinkle evenly with mozzarella cheese. Bake 5-7 minutes, or until cheese is melted and brown spots appear. Garnish with minced basil, and serve.