Separate dough into 5 biscuits. Press or roll each to form 5 1/2-inch round. Spoon about 1/3 cup broccoli mixture onto center of each round; fold dough over filling, pinching edge and ends of dough well to seal. Place rolls on cookie sheet, seam side down. Place 1 pretzel on cookie sheet under each side of dough rolls for wings. Break pretzels to make antennae; press under top of each roll.