In 10-inch skillet, heat 1 tablespoon oil over medium heat. Add tomatoes and bell pepper; cook 10 to 15 minutes, stirring occasionally, until most of liquid has evaporated. Remove from heat. Stir in remaining salad ingredients; place in medium bowl and set aside to cool. Wipe skillet clean with paper towel.
Heat oven to 400°F. In same skillet, heat 1/3 cup oil over medium heat. Add onion and garlic; cook and stir 2 to 3 minutes or until onion is tender. Set onion mixture aside. With 1 tablespoon of the oil from onion mixture, grease 9-inch round pan.
Unroll dough; fold in half. Place dough in pan; gently press evenly in pan. With fork, poke holes in dough every 2 inches. Spread onion mixture evenly over dough. Sprinkle Parmesan cheese over top.
Bake 18 to 20 minutes or until golden brown and slightly puffed. Cool slightly, about 10 minutes. Remove from pan; place on serving plate. Top warm bread with salad.