[Réponse en anglais]
The local Spar and Jumbo supermarkets both have bread/bakery section.
Bread is also sold at Brood & Brunch 't Hof at Willibrordusplein 24 in (the centre of) Zoutelande:
Brood & Brunch 't Hof.
Willibrordusplein 24, Zoutelande
tel. +316-16792969
https://www.broodenbrunchthof.nl/
At Camping Weltevreden you will also find a wide range of fresh rolls:
Bij Bastiaan
Westkapelseweg 57, Zoutelande
+316-24647641
https://bij-bastiaan.nl/
There is also a bakery in Meliskerke:
Bakery Koppejan.
Burg. Adelaarstraat 2, Meliskerke
https://www.bakkerijkoppejan.nl/