Preheat the oven to 200 ° C hot air. Spread the rectangular quiche dough out on a baking sheet.
Wash the chives and spread them into fine rolls. Mix with the crème fraîche, add a little salt and pepper. Then use a spoon to spread evenly over the quiche dough.
Wash the tomatoes, cut them in half and spread them on the tray with the bacon cubes. Cut 150 g halloumi or feta or herder cheese into 1 cm cubes and place on the dough.
Bake the quiche for about 20-25 minutes in the preheated oven on the middle rack.
Wash the lettuce, cucumber and radishes for the salad. Pluck the lettuce into bite-sized pieces, cut the cucumber and radishes into fine slices. Cut the rest of the cheese into small cubes about 0.5 cm.
Mix yoghurt, oil, vinegar and mustard into a marinade and season with salt, pepper and sugar as required. Possibly stretch with a tablespoon of cold water. Just before serving, pour the marinade over the salad and mix well.