Nihari is best eaten

So my local Indian takeaway has an interesting item in the 'specials' section of its menu:

Nihari £9.95

Lamb on the bone is slow cooked to release all its flavours making a rich, very distinctive curry. Best eaten.

"Best eaten"? Does that mean that the other dishes are best avoided?

Funny, but I've found a very similar description on another restaurant's menu - only this one ends with "Best eaten with garlic naan"...