Could you recommend any restaurants that you found especially good in Lisbon or Porto ranging from moderate and maybe one night a little more expensive? Thank you in advance for your help.

Pedro Lemos was a highlight for us. I think it has a star on the Michelin (didn't bother to check) : https://www.tripadvisor.co.uk/Restau..._Portugal.html

On the edge of Porto, out where the big cruise ships dock, there was a line of outdoor restaurants with big grills, cooking fish. We had one of our best meals ever there - not fancy but just delicious. Sorry I don't have the name but if you get a chance head out that way for a lunch - I would think any of the restaurants would be offering the fresh grilled fish and they would be yummy!

Cantinho Avillez was one of my favorite meals in Portugal. I ate at the one in Lisbon, but I think there's one in Porto too. I also ate at Bairro Avillez, which I really liked. Tapabento in Porto was fabulous - get a reservation.

Do you like fish and shellfish? If so, one of our favorite restaurants in Lisbon is Cervejaria Ramiro, recommended by Anthony Bourdain and Andrew Zimmern. I suggest getting there around 6PM if you don't want to wait in line too long.

We also enjoyed Bonjardim Restaurante (in Lisbon) for delicious roasted chicken.