For 2 persons
Soak in water and squeeze out stale whole grain roll or bread. Cut the fish into pieces and puree in blender with bread and other ingredients. With floured hands, form two flat patties, coat briefly with flour, and fry each side in hot oil for 5 minutes.
For the sauce, mix together all ingredients until smooth.
Slice open the whole grain roll, spread sauce on both halves, layer with lettuce leaves, tomato slices, and pickle slices, then place the fish patties on top and put halves together.
For higher energy needs, enjoy an additional 100 g of herb quark (alternatively cottage cheese) with 1 serving of raw fruit or vegetables.
*(Extra calories for persons with extra high energy requirement - at least 8 hours of continuous standing a day or athletes performing 8 hours of sports per week)