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Wiktionary
steak diane

n. A filet mignon, often cooked at the table in a restaurant, seasoned with garlic and black pepper, fry quickly in butter, and flambéed in brandy.

Wikipedia
Steak Diane

Steak Diane is an American dish of a pan-fried beefsteak with a sauce made from the seasoned pan juices, generally prepared in restaurants tableside, and flambéed. It was popular in the middle of the 20th century, but was considered dated by 1980.

Usage examples of "steak diane".

The head waiter was now making a great song and dance about cooking Cameron's steak Diane at the table, throwing mushrooms and spring onions into the sizzling butter.

I don't think you're in the mood for Caesar salad and steak Diane, are you, Lieutenant?