First things first: Finely slice a zucchini (skin on), put the slices on a tray and sprinkle salt on them. Leave them there until the other steps are covered.
Mix the cheese, yogurt and the dill in a bowl and then put it to rest in the fridge until the dough is ready.
Mix the flour with the salt and thyme. Gradually add the water while mixing the composition. Spread the dough into a tart pan and poke holes across it with a fork. Bake it in a preheated oven at 180°C for 5 mins, then reduce the temperature to 120°C and bake for 15 mins.
Take the tart pan out of the oven and evenly spread the cheese topping on it. Dry the zucchini slices in a paper towel and then place them on top of the cheese. Put the tart in the oven for 15 mins at 180°C.
Serve hot or cold with tomatoes salad.
Notes
If the dough composition is too sticky, add a small amount of flour until the dough comes off your hand easily.