Cut the chicken into slices and work with a meat tenderizer to make thin roulades. Season these with salt and pepper and brush with the pesto. Cut the dried tomatoes and the feta into very small pieces, process both with the tomato sauce to a spreadable mass and spread on the meat. Roll up the roulades and secure with toothpicks. Fry well in a pan for about 3 minutes on each side.
Chop the onion, mix it with the milk and the bresso and pour this sauce into a baking dish. Place the fried rolls on top and finish cooking in about 35 minutes in the preheated oven (200 ° C).