Have you tried Food Fayre in Messines. They have several vegetarian products there.

Food Fayre in Messines carry a range of gluten free products, including spelt flour. You can phone ahead to make sure they have what you need in stock or for directions. Tel: 282 332 692 They also take orders if there is anything special you need.

It's on the post office road next to the primary school. they have a full range of British & Dutch food. tel 282 332692

You can get tahini paste at Food Fayre in Messines.