Wash the schnitzel, pat dry, pat and season. Halve the ham slices and place on the schnitzel with a slice of cheese on top. Roll up and place in a greased baking dish (the seam below).
Then finely dice the onion and sauté in the oil until translucent, pour in the broth and stir in the grated cheese until there are no more lumps. Season with broth, pepper and nutmeg and stir in the parsley.
The whole thing comes in the oven at 180 ° C for 30 minutes. After 25 minutes, pour the rest of the Emmental cheese, cut into strips.