Peel and dice the onion. Peel and slice the garlic. Wash and clean the tomatoes, cut them crosswise at the bottom and cook them in boiling water for about 2 minutes.
Quench tomatoes, peel skin. Cut tomatoes into 6 slices. Heat 1 tablespoon of oil in a pot. Fry the tomatoes, garlic and onion for about 4 minutes. Stir in tomato paste and fry for another 2 minutes.
Deglaze with white wine and boil down for about 10 minutes until creamy. Meanwhile wash the fish, dab dry and cut into cubes (2-3 cm). Prepare pasta in boiling salted water according to package instructions.
Heat 1 tablespoon of oil in a coated frying pan. Season the fish with salt and pepper and fry on medium heat for about 3 minutes until golden brown all around. Add the fish to the sauce and continue to cook over a low heat for another 5 minutes.
Meanwhile, wash the mint and parsley and dab dry. Put 1 stalk of mint aside for garnishing. Pluck the leaves of mint and parsley from the stalks and chop them coarsely. Fold the herbs into the sauce.
Season the sauce with salt, pepper, lemon juice and sugar. Arrange pasta and sauce on preheated plates. Garnish with mint and sprinkle with sea salt.