So I've made this pie.......

Heat a baking tray in the oven before you put your pie on it, pop the pie into the oven with a double layer of foil, or preferably non-stick baking paper, on the top - cook it at 180oC (170oC if it's a fan oven) for about fifteen minutes then take off the paper and continue to cook for another 10/15 minutes.

That's my best offering - let us know how you get on.

Daisy does haha

Oh @phoenix. My DH is the same.
We never have quiche, we have 'open top pies' aka quiche to anyone with a brain ?

JackyB no, I didn't I might have done if it was a quiche/flan.

Funnily enough, Mr P will often enjoy a cheese, bacon and onion flan, but seems totally averse to quiche,

It will be lovely. Enjoy it.

Nooo kitty it's smaller! It's the different dimensions that are causing concern!

I would put foil on top once the top is cooked.

Definitely preheat your oven for around 15 minutes and put a baking sheet in at the same time ,then hope for the best and if it is soggy just eat the filling and the top pastry ?

Cook it on a pre heated "pizza stone" if not your thickest/heaviest baking tray/sheet also pre-heated, good luck.

Did you bake the base blind before you filled it?

I'd place it on a pre-heated baking tray and do it at about 170 in my fan oven which is also erratic.

As it is larger than usual I would also invite your favourite gner to help eat it. (Thats me in case you are wondering!)

To, not do!