Combine first 5 ingredients in a medium bowl; stir until well blended. Spread cheese mixture evenly over crust, leaving a 1/2-inch border. Top with tomatoes, Parmesan cheese, and 1/4 teaspoon pepper. Place on a baking sheet, and bake at 450° for 8 to 10 minutes or until browned and bubbly. Cut into 12 wedges.