Yes, you can freeze this tart recipe. to do this you'll want to freeze the tart solid in the pan for a few hours before removing it from the pan wrapping it well in plastic wrap and storing it in an airtight container. Then, the night before you wish to serve it, unwrap the tart and place it into the pan before lightly covering it with plastic wrap as it sits in the fridge overnight to thaw. The chocolate ganache on top may sweat but this is to be expected.