Hiya, Phillip! Welcome to planDisney and thanks for your question!
You can most certainly bring a cooler with some snacks and beverages to the Disneyland Resort. There are just a few
rules of which you should be aware. Your cooler needs to be smaller than 24" long x 15" wide x 18" high and you cannot bring loose ice. Reusable ice/cooler packs for your cooler are permitted. Please also make sure your snack and beverage containers are not made of glass (baby food jars are the only exception). Finally, please don't bring any alcoholic beverages into the parks.
You may consider storing your cooler in a
locker in between snack and meal times. These can be rented in the esplanade, which is right outside Disneyland Park, or inside either park. The esplanade area is really convenient because the Guest picnic area is nearby where you can enjoy your food.
Or, if you don't want to bring your own food along, there is a multitude of tasty items to eat through the parks and the Downtown Disney District. The quick service options are abundant, feature some incredibly delicious dishes, and you can order ahead using the
mobile order feature on the Disneyland app.
I hope this helps. Have a fabulous time at the Happiest Place on Earth!
-Linda