Wash the fish fillets, cut into 1 cm slices, sprinkle with lemon juice.
Fry the onion slices and strips from the peppers in butter for about 5 minutes, place the fish on top, season with salt and pepper, pour white wine and steam gently for about 10 minutes.
Carefully remove the fish and arrange it. Mix the cream with paprika and starch flour and add to the pan, bring to the boil. Season the sauce spicy with sprinkle seasoning and pepper and pour the sauce around the fish. Serve with rice or boiled potatoes.