How can i cook a fray bento's pie without the gloopy pastry?

As above, i do like a fray bento's pie but detest the slimy pastry on the inside. someones gotta have a wee trick to crisp it all nicely?How can i cook a fray bento's pie without the gloopy pastry?
Take the pastry top off before cooking and place on a baking tray then cook in the oven along with the meat . Leave meat in the tin pie dish.How can i cook a fray bento's pie without the gloopy pastry?
add water around the pie, the slimy pastry gets evaporated:)How can i cook a fray bento's pie without the gloopy pastry?
You cant. Im afraid they are always that disgusting.