Wash lemon hot and rub dry. Finely grate the zest of half the lemon. Halve the lemon and squeeze the juice. Wash and clean the cucumber and peel it in such a way that the peel remains in intervals. Cut lengthwise and remove seeds. Cut the cucumber into small cubes. Peel onion and garlic and dice finely.
Wash the chilli, carve lengthwise and remove seeds. Dice chilli finely. Mix olive oil with lemon peel, vinegar, chili, onion and garlic. Season with salt and sugar. Marinate cucumber cubes in the sauce for about 20 minutes. In the meantime, place the French fries on a baking tray lined with baking paper. Bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 18 minutes. In the meantime, clean and wash the spring onions and cut them into rings. Wash parsley, dab dry and chop finely, except for a few leaves for garnishing. Rinse fish and pat dry. Dice fish roughly. Puree spring onions, fish and 2-3 tablespoons lemon juice. Season with salt and pepper. Mix in parsley.
In the meantime, clean and wash the spring onions and cut them into rings. Wash parsley, dab dry and chop finely, except for a few leaves for garnishing. Rinse fish and pat dry. Dice fish roughly. Puree spring onions, fish and 2-3 tablespoons lemon juice. Season with salt and pepper. Mix in parsley. Form 8 longish meatballs with moistened hands. Heat the oil in a pan and fry the meatballs for about 5 minutes. Mix sour cream, 1-2 teaspoons lemon juice and salt. Cut open the rolls. Arrange rolls with cucumber salsa, fish cakes and sour cream. Arrange French fries in a bowl. Garnish with parsley leaves
Form 8 longish meatballs with moistened hands. Heat the oil in a pan and fry the meatballs for about 5 minutes. Mix sour cream, 1-2 teaspoons lemon juice and salt. Cut open the rolls. Arrange rolls with cucumber salsa, fish cakes and sour cream. Arrange French fries in a bowl. Garnish with parsley leaves