Remove pizza dough from can. (Do not unroll dough.) Place dough on cutting board; cut crosswise in half. Unroll each half. Place 3 Singles down center of each dough piece; top diagonally with 1 sausage piece. Fold corners of dough over ends of each sausage piece, then fold 1 of the remaining corners of dough over sausage. Roll dough to completely enclose sausage; pinch seams together to seal. Spray lightly with cooking spray; roll in poppy seed until evenly coated.
Place, seam sides down, on baking sheet sprayed with cooking spray.
Bake 12 to 14 min. or until golden brown. Let stand 5 min. Meanwhile, mix remaining ingredients until blended.
Cut each log into 14 slices. Serve with mayo mixture.