Smoked Ham and Taleggio Panino

Procedure

1. Mix together the mayonnaise, lemon juice, and zest.
2. Lay the bread on the work surface.
3. Spread the two slices of bread with the mayonnaise.
4. Top one of the slices with the ham.
5. Place the tomato slices on top of the ham.
6. Top the ham with the slices of cheese.
7. Top the cheese with the arugula leav