Hi Jennifer,
You can absolutely use multiple
Disney Gift Cards to pay for your meals at participating dining locations at the Walt Disney World Resort.
I have done this myself several times during previous visits and have never encountered any problems at all in doing so. As far as I am aware, there is no limit as to the number of Disney Gift Cards which you can use towards a purchase.
Alternatively, you can also use Disney Gift Cards in conjunction with another form of payment to complete a purchase.
Generally speaking, you can use Disney Gift Cards at Disney owned and operated locations where credit cards are currently accepted. That said, please do note that some carts and other outdoor merchandise vendors may not be able to accept Disney Gift Cards.
Wishing you a magical trip filled with memories which will last a lifetime!
Emma