Heat oven to 450 F. Spray cookie sheets with Pam. Sprinkle evenly with cornmeal. Divide dough into thirds. Place on coated cookie sheets.
Prick crusts generously with fork.
Meanwhile, in medium skillet, brown sausage and drain well. Stir in barbecue sauce. Spred evenly over partially baked crusts. Top with remaining ingredients. Bake at 450 F. for an additional 7-9 minutes or until cheese is melted and crusts are golden brown.