For the seasoning sauce, stir together the oil, 1 teaspoon each of salt and pepper, turmeric, coriander and sweet paprika.
Wash, clean and slice the tomatoes. Peel the onions and cut into quarters or rings, I had quarters. Peel the potatoes and carrots, cut into slices and place in a baking dish.
Wash the fish, pat dry and place on the potatoes. Pour 3/4 of the seasoning sauce over it. Spread the tomato slices and onions on top, pour the rest of the sauce over them.
Cover the baking dish with aluminum foil and cook for 50 - 60 minutes at 200 ° C.