Cut the onion into half rings, chop the carrots into rings. Fry the vegetables in vegetable oil until al dente. Peel the zucchini and cut it into small slices and add it to the vegetables. Fry for another 5 minutes, add salt to the vegetables. In another frying pan, fry the fish fillet, cut into small pieces.
Put the vegetables in a baking tray, put the pieces of fish on top. In a bowl, beat eggs with mayonnaise or sour cream with all the spices with a fork and pour over the fish. Put the baking sheet in the oven at 190 g for 15-20 minutes.