Spray a baking sheet with non-stick spray and set aside.
Unwrap the dough and place it on a lightly floured surface. Roll the dough into a large rectangle until it’s thin (about as thin as a nickel). Trim the wonky edges so the dough is even on all sides, if necessary.
Using a pizza cutter, slice the dough into 8 equal-sized rectangles. Add 2-3 tbsp of vegan cheese to 4 of the rectangles, being careful to leave space on the edges. Add about 1 tbsp of roasted broccoli on top.
Cover the dough with another rectangle piece, and gently press the edges so they’re sealed. Crimp the edges with a fork. Use the pizza cutter to trim off the wonky edges if desired (this helps the Hot Pockets look pretty)!
Place the vegan Hot Pockets in a single layer on the baking sheet. Refrigerate for 30 minutes.
Meanwhile, preheat the oven to 400 F.
Brush the tops of the pastries with melted butter. Bake until golden, about 25 minutes.