There are a lot of restaurants in Porto where you can find the typical and traditional dishes from this city. Portugal is a country near of the sea, and it's usual the people from Oporto eat the fresh fish from Matosinhos. Usually during the summer, namely in June, is the season of "sardinha". This is a very cheap and popular dish. During "São João" popular fests, from 23rd to 24th of June, the citiziens from Oporto eat grilled "sardinhas" with potatoes, salad and peppers. If someone would want to visit Oporto during this day, for sure that will feel the smell of "sardinhas" on the air. On this day, for the people who don't like fish, it 's usually eat grilled pork steack. If you want to taste the fresh fish from Oporto go to Matosinhos and taste it.
The "Francesinha" is a very known and traditional offer of Oporto past gastronomy, for the inahbitants and visitors. There a lot of restaurants that are specialists on this recipe, and usually we can find the difference between them on it's sauce and quality of its ingredients. Some of these restaurants are "Cafe Santiago" near of Coliseum, "Canal 3" on the "5 de Outubro" street, and the "Convivio" restaurant, on the "Bom Sucesso". Actually, you already can find a lot of restaurants outside of Oporto where you also can eat a good "Francesinha", but if you ask an advice to some citiziens of Oporto is possible that they inform you that the great Francesinha is from Oporto. I confess you that I already tasted one very good, from Taberna Belga at Braga. But would you want to know where the Francesinha was born? So please vist the "Regaleira" restaurant, on the historic center of Oporto.
Other important dish from Oporto it is "Tripas à moda do Porto". And if you would want to know, I can inform you that people from Oporto is usually called by "tripeiros". The history is related with the departure from Portuguese army on the XV century from Oporto to Ceuta. The inahbitants of Oporto gave to the navigators the best meat and they kept for themselvs the "Tripas". It is usual the people from Oporto eat this traditional dish on sundays during the families lunch because is a very strong meal and we usualy not advise that you go work after. There are a lot of restaurants where you can find this typical dish. Don't loose the opportunity to taste it! Antoine Bourdain did it whene he visited Oporto!