Turn oven on to heat up to 180'c /356'f.

Put the pastry over your greased pie dishes and push gently into them, making sure you don't split the pastry.

Take a rolling pin and roll over the edges of the pie tins to neaten them up and take off any excess pastry. (Roll out the excess and make a second one of you are using a smaller tin like I have).

Put baking beans in on top of the pastry, or just prick the pastry all over with a fork if you don't have the beans.

Part bake the cases in the oven for 15 mins (fan oven)

While the cases are in the oven, cook off the bacon and mushrooms.

Take out the cases and before the cool too much, remove the baking beans if you have used them - if you wait until the pastry cases are cold the beans will stick.

Chop the spring onions, mushrooms, and bacon then grate the cheese. Mix all of these with the eggs in a bowl and season if you like.

Pour the filling into the pastry cases, filling almost to the top.