Because Monty's choice was not random (he didn't open just any box, he revealed a goat) the remaining probability of two-thirds gets squeezed, as it were, into the third box.

ECONOMIST: Getting the goat

If the name of the meat is just too "Three Billy Goats Gruff" for you, call it "capretto" (Italian for "kid"), like chef Scott Conant does at his five Scarpetta restaurants, where he serves it whenever he can find a good supply of extra-tender, young goat.

WSJ: Get Your Goat On

If he goes a more traditional route with the meat sandwich, he may get creative with the vegetarian one, trotting out a goat cheese and olive or artichoke-cheese sandwich.

WSJ: Tricks of the Trade: The Modern Tea Party