Beat the egg in a bowl, season with salt and pepper and whisk with a fork. Wash the zucchini and remove the ends. Chop the zucchini into strips and mix with the egg.
Heat some oil in a pan and add the zucchini and egg mixture to the pan. When the omelette is firm enough at the bottom, turn and fry a little more.
For the dip, mix the quark with mustard, a little salt, white wine vinegar and the herbs. Add water or milk depending on the desired consistency.
Arrange the smoked salmon with the dip on the plate and add the finished omelette.
Well suited as a high-protein and low-carbohydrate dinner.