Life Salmon is the new cheesesteak. But some in Philly still don’t know it. September 29, 2021 Matthew Korfhage, USA TODAY NETWORK Comments Off on Salmon is the new cheesesteak. But some in Philly still don’t know it. The salmon cheesesteak is a paradox — so popular it inspires half-hour waits on the sidewalk, yet unknown to half its home city of Philadelphia.