You are not using American lamb. Where do you get lamb legs that small? I want to shop there.
Can't tell if serious.
You really don't have half lamb legs in the US?
Are all your lambs mutants?
This is a two person meal for most people. Two lamb half-legs, ~2lbs.

Costco has them. Half legs, Whole leg, even whole lamb.
Lamb isn't that common here for some reason. Most of the time I have it, it's either Gyro, Shawarma, or Lamb Chops.
Beef is pretty damn popular, so it doesn't seem like too many people even bother.
I think Lamb Leg is delicious.