On lightly floured surface, form dough into 24-inch roll. Place on greased cookie sheet sprinkled with cornmeal. Join ends to form ring, pressing together to seal. Diagonally slash top of dough with knife at 1-inch intervals. Grease outside of 6 oz. custard cup or empty 16 oz. can; place inside ring. Cover; let rise in warm place until double in volume, about 1 and 1/2 hours. Sprinkle with additional cornmeal. Bake at 375 degrees for 25-30 minutes or until golden brown. Cool; remove custard cup.
Slice bread in half horizontally. Spread loaf with salad dressing; cover with lettuce and tomatoes. Cover bottom half of loaf with ham and Swiss cheese; top with salami, Colby cheese and top half of loaf. 8-10 servings.