Hi, Holly! Welcome to the Disney Parks Moms Panel and thanks for your question. I am so excited that you will be staying at a
Disneyland Resort Hotel during your visit! You are going to love the short stroll to the parks and all the charm and beauty that make Disneyland Resort Hotels unique.
In my experience, I've found that most of the milk sold at the parks is low-fat, 1 percent milk or chocolate milk. Some of the stores inside the Disneyland Resort Hotels, like
White Water Snacks, sell half gallons of milk in a few varieties, including whole milk. However, I'm not sure if it is organic or not. Since it sounds like you need a specific product, I recommend getting groceries delivered to your hotel. All three Disneyland Resort Hotels will accept grocery deliveries and keep your refrigerated items cold until you check in.
I have used Vons several times because they have a wide selection of items and always deliver on time. Since you will have a mini-fridge in your hotel room, I wouldn't order anything larger than a half gallon. Anything larger may not fit well in your in-room fridge. You can then fill bottles or sippy cups and take them into the parks in a small cooler that you could store in the bottom of a stroller or you can
rent a locker. In addition to Vons, you could check out Amazon Now/Prime Pantry and Instacart as I believe these both also deliver to the Anaheim area.
I hope this helps. Have a magical time at the Happiest Place on Earth!
-Linda M.