Lattice Chicken Potpie

In a large bowl, combine the vegetables, chicken, soup, milk, cheese, onions and seasoned salt. Transfer to a greased 13-in. x 9-in. x 2-in. baking dish. Unroll the crescent roll dough and separate into two rectangles. Seal the perforations; cut each rectangle lengthwise into 1/2-in. strips. Form a lattice crust over the chicken mixture. bake, uncovered, at 375 degrees F for 35-40 minutes or until golden brown. ');