No, They do not provide sack lunches. You could however take some ziplock bags, order some sandwiches from room service and pack your own lunch. They also have a selection of cheese and crackers that would be excellent for packing.
We too have ordered food on the ship and brought it with us when going ashore. We used disposable utensils from the fast food outlets on the ship.
Barb
Visit the Platinum Castaway Club at: www.castawayclub.com
GET UP TO A $1000 SHIPBOARD CREDIT AND AN EXCLUSIVE GIFT!
If you make your Disney Cruise Line reservation with Dreams Unlimited Travel you’ll receive these incredible shipboard credits to spend on your cruise!