Help - what pan should I use???

[oysterpots]

I'm making this but I don't have a flan tin.

Which of the following should I use?
:: 20cm springform cake tin
:: oval ceramic oven dish - not sure of size really!
:: 20cm loose-bottomed sandwich cake tin
:: 20cm deep ceramic oven dish

Help! Not hugely experienced with pastry!

I'd go for the sandwich tin, but I'd line it up the side, in case the filling leaks.

Thanks Habbibu, it worked a treat