01 Preheat oven to 400 degrees F. Grease a baking sheet.
02On a lightly floured surface, roll dough to form a 9 x 14 rectangle, about 1/4 inch thick. Transfer to prepared baking sheet.
03Spread pizza sauce over half of the dough. Sprinkle cheese over dough, leaving 1/2 inch uncovered around the edge. Layer broccoli on one side of the dough. Fold dough in half over the cheese and broccoli filling. Seal edges of the calzone by pressing with the back of a fork. Prick top. Brush top with butter.
04 Bake for 20-25 minutes, or until crust is lightly browned. Allow to cool for 5 minutes before cutting.