Just spent a week in Ponta Delgada and have to praise the restaurant "Rotas" (In Rua Pedro Homem) for their fantastic food! We just got bitten and went there 4 of 7 evenings+ one day for lunch. The tofu dinner dish is to die for and the chocolate cake a killer!!! There also is a restaurant in Rua João F. Cabral named "Bac" or something, they have vegetarian dishes as well which are ok if you wanna go out to eat with someone who wants fish or meat. But when it comes to taste and atmosphere, it's far below Rotas.
There is vegan and vegetarian foods in "Modelo" in "Parque Atlantico", the big shopping center, but there is vegan foods in supermarkets as well. By the Solmar shopping center by the marine, there is a grocery store I went to a lot where they sell soy milk, soy yoghurts etc.
Norwegians in Ponta Delgada