Preheat the oven to 160 degrees.
Fry the ham cubes with a little oil in a pan, then fry the onion strips and the mushroom slices until golden and then place the entire pan in an ovenproof dish.
Place the chicken breasts on top and sprinkle the cheese on top. Season with pepper and finally baste with cream. Bake in the preheated oven for about 20 minutes.
During this time, heat the olive oil in a saucepan, add the pimientos and let sizzle covered for about 2 minutes, shaking the saucepan from time to time.
Sprinkle the pimientos de padrón with coarse sea salt and serve with the gratinated chicken breasts.
There was also a parsley rice ... the recipe is under: Parsley rice ...