Is dinner available at Rialto? Or plan on dinner before or after a show?

Dinner before the show! Ted's across the street is a great choice.

dinner before the show, in our case a few times going to a few different concerts.

There is an on-site kitchen. One of the rooms doubles as a cafeteria during conferences. I have had events with meals, and events without at the Rialto. So it seems to vary depending on the exact event.