In the meantime, cut a pocket into the chicken breast and coat it with cream cheese. Then fill each with half a slice of boiled ham, a slice of mozzarella and a little onion. Then season with salt and pepper and fry briefly on both sides.
Line the bottom of a baking dish with the asparagus. Place the stuffed chicken breasts on top. Cut the rest of the mozzarella into slices and spread on top.
Fry the pressed garlic clove and the remaining finely diced onion in the roasting fat. Top up with a little asparagus stock and add the remaining ingredients to create a creamy sauce. Pour this over the chicken breasts and put everything in the oven at 180 ° for about 30 minutes.