Preparation:

 Take the pieces out of the freezer in order to restore softness.

Arrange the pieces, apart, in a tray greased with little butter.

Then put the tray on the middlegrid of a moderately hot oven for 3 minutes.

The pieces are to be taken out of the oven.

Put the filling up the pieces: tomatoes sauce, mozzarella, green pepper, onion, salt, oregano and Pieces of  hut dog and olives.

Then put the tray again on the oven for 5 minutes, until the pieces are of golden color.