How long should you cook lamb steaks?
I think they usually make them medium at the restaurants, but you could get rare if you like.

Anyway, with a .7 pound lamb, you could probably warm the oven up at 120C for 10 minutes, then put in the lamb, and turn the thermometer up to 180C for round about half an hour, and it should done to a turn.

Leastways, that's what I did.