Truly a gem in the King/Spadina area. I came here for some take-out brunch on a Thursday and ordered the eggs/bacon/home fries. The food was exactly what you would want from a late breakfast/brunch - oily, hearty and savory. As a plus, the diner is also cheap and family-run.
My only complaint is the limited hours - Avenue Open is ironically, not open on weekends when I would have needed it the most! In terms of seating, there is a long bar for larger groups and only 3 booths.
I regret not finding this diner sooner, but will definitely be coming back for more!