Prepare the products. Fillet cut into pieces in the form of medallions, season with salt, pepper and season. Roll well in breadcrumbs.
Cut the shallots into half rings, peel the peppers from the seeds and cut them into small squares.
Fry the onion until transparent.
Add the mushrooms without the liquid and lightly fry all together.
Then add the pepper and simmer a little more. Set aside.
Fry the chicken until golden brown in vegetable oil.
Add the vegetable and mushroom mixture.
Peel the tomatoes and finely chop them, preserving the seeds and juice. Pour the tomato mixture over the chicken, add salt and pepper to taste, and mix again. Top with thyme.
Simmer on low heat under the lid for 20 minutes. Then remove the thyme.