I roasted a boneless lamb leg for the first time the other night, and while I manged to avoid my main fear of overcooking the meat, I ran into something unexpected. When I sliced up the lamb, on almost all slices there are very small holes throughout, almost making the lamb look sponge-like (or maybe fried tofu-like, if that makes more sense -- see the attached pics.) I've never seen this before with lamb or any other meat. What's going on, and should I be concerned that there was something wrong with the lamb?? (Mad cow was the first thing that popped into my head, unfortunately...)
Thanks for any advice or guidance!