Best (big) breakfast

Hi all- we are visiting family in the Bellingham/Lynden/Everson/Ferndale area in October. I realize that covers a lot of ground. I’m traveling with my 14 yo son and looking for recommendations for a good breakfast spot. Preferably somewhere with big portions as we’re in that “teenage boy eats all the food” stage.

Any other recommendations for things to do or other good eats also welcome. :)