Unroll dough and press into ungreased 15x10x1-inch pan; press perforations to seal. Sprinkle with rosemary and salt. Bake at 375°F 8 to 10 minutes or until lightly browned. Cool on cooling rack.
Spread hummus over crust. Top with cheese, tomatoes, olives and onion; drizzle with oil. Cut into 6 rows by 4 rows. Cover and refrigerate leftovers.