Shrimp-Pesto Pizza

We found fresh pizza dough that can be purchased at the Publix deli counter. If you expect a large audience, you can buy pizza dough in bulk at your local wholesale store or even at your favorite pizzeria.
Brush a cold grill rack with cooking spray and place on the grill. Preheat the grill to 350° (medium) heat.Peel the prawns and cut them in half lengthwise; if desired, cut them into small pieces.Saute the onion, bell pepper, salt and pepper in 1/2 tsp. Heat the oil in a large skillet over medium heat for 5 minutes or until tender. Transfer the onion mixture to a large bowl. Saute the shrimp in the remaining 1 teaspoon of olive oil. Heat the oil for 3 minutes or just until the shrimp is pink. Add the shrimp to the onion mixture and stir to combine.Divide the dough into 6 equal parts. Lightly dust a large surface with flour. Roll out each serving into a 6-inch diameter circle (about 1/4-inch thick). Carefully transfer the pizza dough slices to a cutting board or baking sheet dusted with cornmeal.Place the pizza dough circles on the grill rack; spread the pesto circles and sprinkle with the shrimp mixture. Sprinkle each with 2 tablespoons of Parmesan cheese.Cook on the grill, covered, for 4 minutes. Turn the pizza a quarter turn and cook on the grill, covered, for another 5-6 minutes or until the pizza crust is ready. Serve immediately.* Can be replaced with pesto sauce bought in the refrigerator.Note: Individual portions of pizza dough can be prepared in advance. Roll out as directed and place between pieces of waxed paper sprinkled with flour and cornmeal; place in a gallon-sized zippered plastic bag. Close the bag and refrigerate for 8 hours.