Preheat oven to 425 degrees F. Grease a very large baking sheet. Roll dough to a 15x10-inch rectangle. Place dough on prepared baking sheet; reshape dough as needed. Prick all over with a fork and brush dough with 1 1/2 tablespoons of the oil. Bake for 12 to 15 minutes or until lightly browned and crisp. Remove and set aside.
Grease a large baking pan; set aside. In a small bowl combine the panko, Parmesan, Italian seasoning, and salt. In a large bowl toss cauliflower with eggs; add panko mixture and toss to coat. Spread cauliflower mixture evenly on prepared baking pan. Bake for 20 to 25 minutes or until browned and tender, turning pieces once.
Top baked pizza dough with marinara, mozzarella, and cauliflower. Bake for 7 to 9 minutes more or until heated through. Drizzle with 1 tablespoon olive oil. Top with olives and basil. Serve immediately.