HEAT oven to 350°F. Combine beef, 1/2 cup mozzarella, bread crumbs, 1/2 cup tomato sauce, Parmesan cheese, Worcestershire and oregano in large bowl; stir with fork until well blended.
PLACE meat mixture into round pizza pan with edge or pie plate and shape into 9 x 1-inch round. Bake 35 minutes or until no longer pink in center and internal temperature reads 160°F. Drain fat.
TOP with remaining tomato sauce, sliced tomato and green bell pepper strips, mozzarella cheese and Crispy Fried Onions. Bake 5 minutes or until cheese is melted and onions are golden. Cut into wedges to serve.