Spread one of the bread slices with half of the mustard, then layer with half of the ham, half of the cheese, 1 leaf of lettuce, 1 slice of tomato and 2 pickle slices. Top with another slice of bread.
Spread the remaining mustard on the top slice of bread and layer with the remaining ham, cheese, lettuce, tomato and pickle slices. Top with the third slice of bread and hold together with two skewers.
Slice in half diagonally and serve with giardiniera.
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