You get a meal voucher for a transit >4hrs but they can be difficult to find. I've not had one in a while but I believe the connections desk can provide them or there is (used to be at least) a counter at gate A24 or A25.

Stopover package seems like a waste considering you'd get about 4.5 hours of actual time to sleep at most. For less you can buy lounge access which for that length of layover I think is more suitable.