http://www.dlpfoodguide.com/ The BEST food/restaurant guide about DLP ever - remember, it's no longer Eurodisney it's Disneyland, Paris =)
As you are going in June the queues should be relatively short. The French schools in zone A (which inc Paris) don't start until 2 July, so although the park may be busier come 4pm onwards, during the main part of the day, you should be fine. Weather should be warm; about the same as the UK in June
Book the half board option if you can - you can add it now if you want to - as you'll safe a fortune on food prices using your vouchers. Utilise the breakfast bar as well to take snacks for lunch in the park. You most likely won't be allowed to take a large packed lunch in but a few bits in a back pack will be fine.
Take bottles of water in with you to refill using the fountains dotted all round the park - water is fine to drink and is of a better quality than UK water IMO, plus it's cool
cont ..............