The logo shows a cuddly baby lamb wearing a bow tie, so it comes as no surprise that Happy Family specializes in lamb. At this cavernous Chinese restaurant on Flushing's Main Street, choose a dozen delicious lamb dumplings crammed with meat and scallions ($3.95), 10 cumin-dusted kebabs that taste vaguely Middle Eastern ("lamb on a stick," $10), a bowl of lamb stew scented with cilantro and garlic ($5.95), or for the more brazen, lamb testicles, hearts, and livers. continued...