Defrost the redfish fillets. Peel and wash the carrots. Clean and wash the zucchini. Cut both into fine slices. Peel, wash, halve and slice the potatoes.
Cook in the boiling broth for about 12 minutes. After 5 minutes add carrots and zucchini and cook to the end. Drain vegetables. Peel garlic, press through a garlic press and mix with mayonnaise and yoghurt.
Season to taste with salt and orange pepper. Arrange in a bowl and sprinkle with orange pepper. Mix breadcrumbs and lemon zest. Wash the fish, dab dry and sprinkle with 2 tablespoons of lemon juice.
Season with salt and turn in flour. Whisk the eggs. Turn the fillets first in the egg and then in the breadcrumbs. Fry fillets in hot fat for about 5 minutes on both sides until golden brown. Mix remaining lemon juice, salt and pepper.
Add oil. Turn drained vegetables loosely in it. Arrange on a plate with the fish. Garnish with a slice of lemon, lemon zest and parsley.