Most people like the idea of getting free food at Disneyland and California Adventure! Here are my top 4 places I get free food in both parks.
#1 If you ever go to Pacific Wharf in California Adventure go inside the Bakery Tour and you can get a free sample of Boudin bread and it is so delicious.
#2 Another place that offers free food is Ghiradelli, at Ghiradelli you can get a free piece of chocolate! The flavors are usually milk chocolate, caramel, or peppermint around Christmas.
#3 All counter service restaurants will give you a free cup of water if you ask for it.
#4 Cozy cone restaurant offers free samples of all their food.