Mix quark, mineral water and horseradish, season with salt and pepper. Wash the cucumber and rub dry. Cut off 1 slice. Grate the rest of the cucumber into the quark. Fill into a bowl and garnish with the cucumber slice
Whisk eggs and milk, season with pepper and 1 pinch of salt. Clean, wash and dice the peppers. Cut ham into small pieces. Wash spinach and pat dry.
Heat oil in a small coated pan. Sauté the vegetables for about 2 minutes while turning, add ham and eggs. Leave to set on a low heat for about 5 minutes. Fold the omelette and serve with the cucumber quark