Directions

1. 1. Place a pizza brick, unglazed terracotta tile or baking sheet in the men. Preheat oven to 450°F/230°C/Gas Mark 6. Clean the scallops and mussels.
2. 2. Remove beards, drop into boiling water and cook for 1 minute. Discard any unopened shells.
3. 3. Remove meat from shells and place in a saucepan with the shrimp, tomato sauce and saffron.
4. 4. Cook over a gentle heat until the seafood is cooked, about 5 minutes
5. 5. On a floured surface, press each pizza dough out to form a 9-in/22-cm circle (always pressing from the inside of the dough to the outside).
6. 6. Divide the filling, placing it on one side of each circle. Fold over each round of dough to form a semicircle and press to seal the edges.
7. 7. Cut two holes in the top of each. Place the calzones on the heated brick, tile or baking sheet.
8. 8. Bake for 20 minutes, or until golden on top and crisp underneath.