Slice your bread in half and spread about 2 tsps of mustard to the inside top portion of the bread. Then, add the pickles.
To the bottom half, layer the ingredients in this order: first the croquettes, then the ham and finally the swiss cheese.
Cover the bottom half with the top portion containing the mustard and pickles. Place the sandwich in a panini press. Cook until the bread is toasted and the cheese is slightly melted.