Health NYC Kosher Smash Burger: New Ghost Kitchen “Shmash” by Dr Natalie Singh - Health Editor May 1, 2026 by Dr Natalie Singh - Health Editor May 1, 2026 New Kosher Smash Burger Spot, Shmash, Launches in NYC A new kosher burger concept, Shmash, has opened in New York City, bringing a fine-dining approach to the popular smash burger … 0 FacebookTwitterPinterestEmail