Preheat the oven to 190 ° C and grease a muffin tin well. Coarsely grate the cheese. Cut the ham into small pieces.
Mix the flour, baking powder, nutmeg and salt in a bowl. Add egg, butter and milk and stir everything well. Finally fold in the cheese and ham well. Pour the batter into the molds and bake for about 20-25 minutes.