Hi Patty!
Thank you for brining your question to the Disney Parks Moms Panel!
There are a few ways and companies you can use to have groceries delivered to your
Walt Disney World Resort. A quick Google search will give you names of many of them. However, my favorite company is Garden Grocer.
You will place your order through their website, choose your delivery date, and they will deliver to Bell Services at your resort. They can hold them there for you or you can choose to have Bell Services deliver them to your room as they would luggage.
To be honest, it's probably a bit cheaper to take an Uber to a nearby grocery store. But, I love the convenience of having it delivered so we don't have to worry about it while on vacation.
I hope this helps! Please let me know if you have any other questions.
~Lori