Lamb Souvlaki

1 boneless leg of lamb (from Costco or similar)
1 big (1 gallon) Ziploc Freezer bag
4 cloves garlic chopped up or crushed
1 TBS dried rosemary
2 TBS olive oil
1 TBS lemon juice
salt and pepper

1. mix up all ingredients except lamb and put in Ziploc bag.
2. Trim all the fat off the lamb with a sharp knife
3. open out the lamb joint and divide carefully into pieces about 1.5 to 2 inches thick, 3 inches wide and 4 inches long. THESE DIMENSIONS ARE VERY APPROXIMATE. The key is they have to be thick enough so the lamb is not overcooked.....trial and error.
4. Put lamb souvlaki in Ziploc bag, mix with marinade and leave 2 hours or more.
5. Broil souvlaki on high 5-6 minutes per side until nicely browned outside and rare inside.