Francesinha is a typical dish of north of Portugal!
Lengend says that one portuguese man that worked in France, came back to Portugal in his retirement and invented one big sandwich with spicy sauce. He didn't know how call it, but after some time he has come to a name. In honour to the French women, that were spicy, he decided to call it Francesinha (little french girl)! Recipe
If you want to try, we can give you advise.