We are traveling to Portugal in October, and would be interested in recommendations for any good restaurants that make accommodations for vegan patrons (no meat, no dairy) in Lisbon or Porto.
We loved a place called "Honest Greens" in Lisbon. I believe there may be a branch in Porto as well. They do lots of salads and bowls with various choices for proteins. They do have meat and fish but also a good selection of vegan options.
https://honestgreens.com/en/menu-2/
There are plenty of options listed on Happy Cow and other websites. The hotels also have good recommendations. In Porto we really enjoyed daTerra Restaurante.