Croque-monsieur like French toast

Assemble the sandwiches:
Spread a thin layer of tomato sauce on 6 slices of bread.
Top with a slice of ham and a generous portion of cheese.
Top with a second slice of bread to form sandwiches.
Prepare the egg mixture:
In a bowl, beat the eggs with the milk.
Dip each sandwich into this mixture, making sure to coat all sides.
Bread the sandwiches:
Sprinkle breadcrumbs on all sides of the dipped sandwiches.
Cook:
Heat a frying pan over medium heat with a little oil or butter.
Brown the sandwiches for 2 to 3 minutes on each side , until crispy and golden brown.