What’s This?

Okay, can somebody tell me the proper name for this silver covered dish? I’m writing a scene where the hero receives a covered dish like this one. But what’s the technical name for it? It’s not a chafing dish. I could call it a silver covered platter. But it’s dome-shaped, and I’d really like to use the correct terminology.

Anyone? Anyone?

I’m tempted to call it the silver dome-shaped cover thingie.