Prepare vegetables as directed on package. Open pouch; pour into medium bowl. Cut vegetables into bite-sized pieces.
Place toasted bun halves, cut side up, on ungreased cookie sheet. Layer turkey evenly onto bun halves. Spoon vegetable mixture over turkey. Top each with 1 slice of cheese.
Broil 4 to 6 inches from heat for 1 to 2 minutes or until cheese is melted.