Wash the meat, dab dry and season with pepper and a little salt. Wash the sage, dab dry and pluck the leaves from the stalks. Cover the fillets with a few leaves and wrap each with 2-3 slices of bacon.
Peel onions and garlic. Chop onions coarsely, press garlic through a garlic press. Heat oil in a pan, fry chicken fillets in it while turning and take them out.
Add onions and garlic to the hot frying fat and fry until transparent. Add tomato sauce and dried herbs, bring to the boil and season with salt, pepper and stock. Place in an ovenproof dish, place chicken fillets inside and sprinkle with cheese.
Braise in the preheated oven (electric: 200 °C / gas: level 3) for about 30 minutes. Serve sprinkled with sage and coloured pepper. Served with baguette