Grate cheese and set aside
Add milk and egg and nutmeg to shallow bowl. Mix well. Set aside.
On cutting board place 2 slices of bread. On one slice spread Raspberry jam and on the other one, spread Dijon mustard.
Add turkey slices to one slice of bread and ham slices to other slice of bread.
Add grated cheese to one slice.
Place one half on top of other half and place into custard mix.
Heat frypan on medium heat and add butter.
Add sandwich to frypan and fry until golden brown 2-3 minutes.
While first half of sandwich is frying, remove just top slice and place into custard.
When time to flip, reassemble sandwich with soaked side up, and flip over. Fry until golden brown, about 2-3 minutes.