Leftover pie - how can I crisp it up?

[MackerelOfFact]

Have some leftover home-made pie in the fridge from earlier in the week, enough for another meal. Was going to reheat it tonight but worried the pastry will be a bit soggy - it's shortcrust top and bottom.

Would I be better off heating it slowly in the oven on low or blasting it quickly on high? Any other tips?

Heat slowly in the oven :-)

send it to me, I will sort it for you

What kind of pie is it?

Will go for the slow option then. It's chicken, leek, sweetcorn and mushroom, but quite cream sauce heavy so quite worried about the integrity of the base.

Will send it over to you Totoros if I change my mind!