Wash the parsley and dab dry. Pluck off the leaves and chop them, except for something to garnish. Mix quark and parsley and season with salt and pepper. Peel, wash and roughly grate the potatoes.
Put the potato mixture in a tea towel and squeeze out the water. Wash and clean the zucchini. Peel onion. Grate both roughly as well. Mix potatoes, zucchini, onion, egg and flour. Season well with salt and pepper.
Heat 1 tablespoon of oil in a coated frying pan. Add 4 x 2 tablespoons of mixture to the pan and press flat. Fry the buffers on each side for 2-3 minutes. Keep warm and continue until the mixture is used up.
Place potato and courgette pancakes on plates and serve with parsley quark and chicken breast slices. Garnish with parsley.