1. Heat oven to 425ºF. Grease cookie sheet. Mix Bisquick, milk and mustard until soft dough forms; beat 30 seconds. Turn dough onto surface dusted with Bisquick; roll in Bisquick to coat. Shape into ball; knead 10 times.
2. Roll dough into 13-inch circle; cut into 8 wedges. Place about 1 teaspoon pickle relish and 1 cheese strip on each wedge about 1 inch from rounded edge. Top with hot dog. Roll up, beginning at rounded edge. Place crescents, with tips underneath, on cookie sheet.
3. Bake about 12 minutes or until golden brown. Serve with additional pickle relish.