My favourites (October November 2021):
- the dinner served at the San Nicolas Albergue in Larrasoaña;
- Mavi restaurant, Los Arcos (great menú del día);
- Kiosko de Pizza, León;
- Los Angeles restaurant, Hospital de Orbigo (great menú del día - lots of trout);
- the cocido maragato at Las Termas restaurant in Astorga (slightly upmarket at 24 EUR for lunch);
- El Casino restaurant, Villafranca del Bierzo (great menú del dia);
- Pulperia A Nosa Terra, Palas de Rei;
- Pulperia Ezequiel, Melide.
My experience as a solo pilgrim in low season in restaurants along the way has been wonderful. I was always warmly welcomed and taken care of, by staff and other guests alike. There was always someone who passed by my table to exchange a few friendly words. They were all intrigued by the exotic Eastern European with clumsy Spanish I guess...
Also I liked the Jesus bakery in Grañon, and the Salazar bakery in Fromista, where I stocked up on sweet snacks for the way.
I hope this helps!