We use the one on 535/Vineland: 3250 Vineland Rd, Kissimmee, FL 34746
I understand completely - I had never even entered a
Walmart until we started food shopping while at Disney
. They have a HUGE selection (including items you can't get at a grocery store such as salon shampoo, specialty foods, even pillows & such), & food quality is at least identical to what we've purchased at Winn-Dixie & Publix.
Btw, they mostly use UberEats for the actual deliveries to resorts- every driver has been very timely & helpful.