I can confirm that the mutton at Ceylonta is goat :-). I think that Momomoto is right... it's common for South Asians to call goat "mutton". My favourite Sri Lankan restaurant here in Toronto, at least, does the same thing!
Because of this, for the longest time, I didn't know that mutton was sheep.
Weird! Maybe they should call it chevron instead of mutton then. ;-) (In case you don't know french: mouton == sheep and chevre == goat. The word "mutton" comes from mouton.)
Based on how it tasted and the shape of the pieces I'm pretty sure that it was goat. It's common in south Asia to call goat mutton, and the description they have for their mutton roll appetizer says that it's goat.
I pity the poor sheep that has to live so close to the equator! More sensible for it to have no woolen coat ;)
I just picked up an order of this for takeout in order to stretch the rice and dal that I've been eating recently.
This type of curry sauce takes really well to the intense flavour, and slightly rough texture, of goat. It's got a dark, nutty, almost coffee-like flavour from the roasting of all the spices, as well as having that spicy kick that comes in after the fact, to clear your sinuses and remind you that life is good.
I'd definitely order this one again, particularly if I were having a sit-down meal.
Momomoto
And, yes, the red sauce is amazing. Sauces like that are why you have to order naan or dosai or whatever bread-thing you can imagine.
I don't think it's *too* too spicy, but I may be losing my sense of taste.