In large bowl, mix barbeque sauce with shredded chicken, beans, 3/4 cup of the cheese, 1/2 cup of the tomatoes and 1/4 cup of the onions. Spoon about 1/2 cup chicken mixture lengthwise down half of each dough rectangle to within 1/4 inch of edges. Fold dough over filling; press edges to seal. Place on ungreased large cookie sheet. Sprinkle with remaining 1/4 cup cheese.