Cheese Calzone: Omit sausage and vegetables. Use 2/3 cup cheese in each calzone. Shape and bake as directed above.
Pepperoni and Vegetable Calzone: Replace sausage with 1/2 cup diced or sliced pepperoni. Cook vegetables in oil; stir in pepperoni. Shape and bake as directed above.
To reheat, wrap loosely in foil; heat at 350°F 20 to 25 minutes.
For added flavor, sprinkle each calzone with Italian seasoning before baking.