Ratatouille zucchini eggplant bell pepper

The traditional culinary recipe of French cuisine is a famous dish called Ratatouille, according to which a very good cartoon was filmed at the time. I must say that I then spent a very long time looking for a recipe for this food that would completely satisfy me. I took it from my own stocks.
Peel the zucchini and eggplant, then cut them into cubes, but put them in separate bowls. Eggplants, by the way, can be left unpeeled. We salt them and leave them for ten minutes. After draining the released juice, pour cold water through a colander and let the water drain.
We grind the olives and cut the sweet pepper into cubes.
Peel the tomatoes, cut them and remove the seeds. Chop the tomatoes finely. Fry the chopped onion and garlic in a frying pan with oil. After 10 minutes, add tomatoes and dried cloves. Let it boil and simmer for another half an hour. After pouring in the vinegar, turn off the fire, cover the pan with a lid.
Fry the chopped eggplants in oil. After we remove them, fry the zucchini. Remove and fry the pepper. Remove excess oil from all vegetables (you can put them on napkins).
Take a saucepan, put all the vegetables in it, including olives. Top up the tomato sauce, pour chopped fresh herbs. Bring to a light boil and remove from the heat. Salt and pepper to taste.