Hi!
Welcome to the Moms Panel! You can definitely share while on the Dining Plan! Many guests do that as Disney portion sizes are generally huge.
Let's say you
are staying for four nights. in that case, each member of your party
will be credited with four counter-service meals, four full-service
(Table Service) meals, and four snacks. All of those meals will be put
into an individual "meal account" to be used by the specific
individual.
Meal credits in your account can be used whenever you would
like. You can do a signature dining experience and use two Table
Service credits, or you can skip a Table Service meal one day and have two the next. You don't have
to use all of your meal credits each day. You can share meals and save
meal credits for another day.
Just remember all of your meal credits will expire at midnight on the
day you check out. Unused meal credits are not refundable and you
can't save them until your next trip.
You can get more information on the Disney Dining Plan
here. Write back if you have any more questions!