Toast your bread until golden.
Drizzle both sides of bread with a little extra virgin olive oil and sprinkle with a tiny pinch of sea salt (not too much as the mortadella is salty).
On one piece of bread, add the four slices of mortadella. Top with the marinated artichokes. Crack a little freshly ground black pepper on top. Add the other piece of toasted bread, olive oil side down, on top of the artichokes. Slice in half.