Roll out the pastry into a quiche dish and press into the edges ... the new potatoes then season with salt and pepper. Put the spinach in a colander and pour over a kettle’s worth of boiling ...
Scatter the Comté on top. Bake the quiche for 20-25 minutes, or until the filling has set and the pastry is golden-brown. Remove from the oven and set aside on a wire rack to cool slightly.