Hi Andrinna,
The scenario you describe in your question is one which I have personally experienced multiple times. I, too, have flown into Orlando International Airport, stayed at
Disney's Pop Century Resort and needed some groceries. The solution I use most frequently in that situation is Garden Grocer. I go online and place my grocery order as far in advance as possible since early orders get a discount. Also, if you wait until the last minute to order, they may not have any delivery people left to bring your order to your hotel. So definitely order early.
If you need just a few grocery items like cereal and milk,
Everything Pop Shopping and Dining has got you covered. However, if you're looking for a wide variety of items, then a grocery delivery service will likely be your best option. You don't even need to be present when your order arrives. The Bell Services team at Disney's Pop Century Resort will hold your delivery until you are all situated back at your resort. They even refrigerate perishable items if need be. Just call them when you're in your guest room and someone from Bell Services will bring your groceries to you.
Enjoy the sweet anticipation that accompanies planning any Walt Disney World Resort vacation, and please let us know if there's anything further we can do to help.
Wishing you many magical memories,
Jill