Take two slices of bread and spread mayonnaise on one slice and yellow mustard on the other and assemble your sandwiches using half your shredded cheese and half your ham.
Repeat a second time for your second sandwich.
In a bowl whisk together eggs, milk, salt and pepper and dip sandwiches in the mixture.
Heat a skillet over medium heat, add the butter and let it melt.
Cook sandwiches for 5 minutes per side or until golden brown and cheese is melted.
Dust with powdered sugar and serve with strawberry jam for dipping.