In a large skillet, saute onion and sugar in 1 tablespoon oil until softened. Reduce heat to medium-low; cook, stirring occasionally, for 30 minutes or until deep golden brown.
Meanwhile, in a small saucepan bring vinegar to a boil; reduce heat. Simmer, uncovered, for 15-20 minutes or until reduced to 1/3 cup.
Place crust on an ungreased 12-in. pizza pan or baking sheet. Combine goat cheese and olives; spread over crust. Top with peppers, tomato, caramelized onion and mozzarella cheese.
Bake at 450° for 8-10 minutes or until cheese is melted. Drizzle with remaining oil; sprinkle with rosemary. Serve with vinegar reduction. Freeze option: Securely wrap and freeze unbaked pizza. To use, unwrap pizza; bake as directed, increasing time as necessary. Serve as directed.