Heat oven to 375°F. Unroll both cans of the dough; separate into 4 long rectangles (if using dough sheets, cut into total of 4 long rectangles). Place rectangles in ungreased 15x10x1-inch pan. Press in bottom and up sides to form crust (if using crescent roll dough, firmly press perforations to seal).
Bake 13 to 17 minutes or until golden brown. Cool completely, about 30 minutes.
In small bowl, mix cream cheese and 1/4 cup of the dressing. Spread over cooled crust. Top with lettuce, broccoli, chicken, carrot, bacon and Parmesan cheese. Gently press into cream cheese. Drizzle with remaining 1/4 cup dressing.
Serve immediately, or cover and refrigerate up to 2 hours before serving. To serve, cut into squares.