USHG is a consultant to Aramark and the Mets regarding the food and drink at the Delta Sky360 Club (field level behind home plate). There's a dining room (reservations required), a bar/lounge, a buffet called The Market (featuring, duh, Blue Smoke, Box Frites, El Verano Taqueria, and pizza, salad, burgers), and/or you can get In-Seat delivery.
These Beef Brisket Sandwiches (pictured) are available in this 1600-seat area. One day SG will sit inside and tell you all about it. Maybe this season. Thinking it will be so.