Peel, wash, cut the potatoes in half, then cut across into thin slices, but not until the end, so that the potato looks whole.
Cut the ham into small pieces.
Cut tomatoes into thin rings.
Alternately, put a slice of ham and tomato into the potatoes in each incision. Then salt and pepper.
Grease the mold with oil and put potatoes in it. Put a slice of plums on the potatoes. oils.
Bake in a preheated oven to 180 degrees for 40 minutes. Then remove sprinkle with grated cheese and bake for about 10 minutes.