So, first set up your bowls with flour/Parmesan, egg and bread crumbs mixed with dried sage and oregano (a dash of each) and freshly ground pepper.
Cut a thickish slice of mozzarella, place two or three leaves of sage on it and enveloppe it with ham. I wrapped it with criss-crossing pieces of ham, leaving a little space at each end so that there was room for the cheese to spread as it melted. Roll the chicken breast around the ham and cheese package.
At this point, suddenly remember to preheat the oven (200c/375f). Place the pan with some butter and olive oil in the oven (this will melt the butter).
Dredge each breast in flour, then egg, then bread crumbs. Take the pan out of the oven and place each of the breasts in it. It doesn't really matter which way is up, as you will flip them over halfway through.
My oven has a fan, so it probably cooked a a bit more quickly than most standard ovens would do. I turned them the first time after about 15 minutes and then back again 15 minutes later. Altogether they took about 45 minutes to cook and came out golden brown and crunchy all over.
And he loved it.