We attended Handel’s Messiah last year, which was 3 hours plus intermission, definitely not a dinner-after-the-performance scenario. If you’d be happy with more than a sandwich, we had Indian food at the Colonel Saab a block north of St. Martin, on William IV Street. We simply walked up and were shown to a table. Within 15 minutes, it started filling up, and I don’t know if the others had made reservations (there was one table with more than 12, so they probably had), or if there were simply many other theatre-goers and concert attendees just showing up for a pre-curtain dinner. Service was quick and efficient, and we were done with time to spare.
The gentleman sitting next to us mentioned that he’d learned the hard way at a prior show that the hard wooden pews at a long performance were very hard on his posterior, and for tonight he’d picked up a cushion out in the lobby, and suggested we rent them, too. Based on his recommendation, my husband went out to try to get a couple, just 2 or 3 minutes before showtime, and there were lots of cushions hanging on the wall, but he was told every one had been reserved, and so it was impossible to get any. People weren’t streaming in the door at that point, or lined up for the cushions, so how all those cushions were going to get claimed in the next three minutes seemed implausible. We made it through the performance without the extra padding, but others might want to plan for it, if cushions are desired and reservations are necessary.