Mozzarella Ham Stromboli

1 tube refrigerated crusty French loaf
2 cups shredded Mozzarella cheese
¼ lb. Thinly sliced deli ham
1 tbsp butter or margarine
1 tbsp grated parmesan cheese

On a lightly floured surface, pat dough into a 14-inchX12-inch rectangle. Sprinkle mozzarella over dough to with ½ inch of edges. Top with a single layer of ham. Roll up tightly from a short side; pinch seam to seal. Place seam side down on an ungreased baking sheet. Brush top of loaf with butter; Sprinkle with parmesan cheese. Bake at 375 degrees for 20-25 minutes or until golden brown. Cool on wire rack for 5 min. Cut with a serrated knife. Serves 6