The Signature Towers are in my Vegas hood, so I was happy to see the Deli downstairs by the pool. We both have asthma, and love the smoke free Signatures for their clean air, and lack of gaming racket.
The Deli serves up firefighter sized hearty breakfast fare, as well as sandwiches and snacks.
They would have four stars if they still served their salmon pizza, but the last time I was there, they had started serving the lox on the traditional bagel, and it was a decent breakfast feast.
The deli mostly serves Signature clients, but can be accessed by the long tunnel connecting them to the MGM casino.