They just opened a Foodland in the shopping mall between soi 13/2 and 13/3. The entrance is directly at the beachroad sidewalk and it's located in the basement. The restaurant section has plenty of tables and seems to have the same menu and prices as the Foodland near Nana in Bangkok. Good to grab some cheapish grub with a variety of western and thai choices. I didn't venture into the supermarket area but it seems of decent size.
O yeah, and it's open 24/7.