If anyone sits in the Portland, Oregon, area, I recommend Broder Söder, which serves Scandinavian brunch.
There are several locations and to me the best one is located in Southwest Portland, at Nordia House, which is a cultural center with walkable grounds and Nordic attractions, such as a giant troll. At that location, they offer outdoor seating and welcome dogs during part of the year, when the weather is nice.
Generally, the Portland area is more dog friendly than various other parts of the U.S.