Make the yoghurt by mixing it with the zest of 1 lemon, grated garlic and salt. Mix well and taste to make any adjustments.
In a large bowl, add the cucumber, grapes, gherkins, shallots and herbs.
Dress generously with evoo, salt and the juice of 1 to 2 lemons (start with 1 and add more if need be).
Toss well and taste to make any adjustments before adding the toasted seeds and tossing again.
To plate, shmear the yoghurt onto the base of a platter and top with the salad. Enjoy!
