In the past the offerings on Metroliner FC were the basically same as that which is offered on Acela FC. Now with hot meals recently restored on Acela, I haven't yet heard if the same was done for Metroliner service. However, my guess would be that they are offering the same, as it just makes more work to have two different services.

Regardless of the hot food issue, you will certainly get a meal served to you and free drinks and booze.