Nope. Unfortunately you can't get milk or juice in the refillable mugs. Just soft drinks, tea (hot and iced), coffee, and hot chocolate.

does the 16" supreme pizza count as 1 entree on the quick service dining plan? if so, JACKPOT!

Thanks, Tom! Sorry I didn't catch this sooner! Yep, the pizza is two CS credits, but I'd suggest heading over to Market Street or ordering Pizza from a name brand. Disney's pizza? Not so good... 😉