1Move oven rack to lowest position. Heat oven to 450°F. Spray 12-inch pizza pan with cooking spray.
2In large bowl, stir Bisquick mix and hot water with fork until soft dough forms; beat vigorously 20 strokes. Divide dough in half. Press half of the dough in pizza pan, using fingers dipped in Bisquick mix; pinch edge to form 1/2-inch rim. Spread pizza sauce over dough. In medium bowl, mix cheese and pizza seasoning; sprinkle over pizza sauce.
3Place remaining dough on surface dusted with Bisquick mix; roll in Bisquick mix to coat. Shape into a ball; knead 5 times. Roll dough into 14-inch circle. Use cookie cutters in Halloween shapes to cut shapes from dough (leave 1 inch of dough between cutouts and leave 1 inch of edge of dough uncut). Fold dough circle in half; place over pizza and unfold. Seal edges. Place dough cutouts on top of pizza if desired.
4Bake 12 to 15 minutes or until crust is golden brown and cheese is melted.