Mash together garlic and salt to form a paste; add lemon juice, oil, thyme, pepper and lemon peel and continue to mash until well combined; set aside.
On rack in broiling pan broil lamb chops until browned on top, about 5 minutes. Turn chops over and spread each chop with 1/4 of the thyme mixture; broil until browned, 4 to 5 minutes longer.
Set 2 tomato slices on each chop, then top each with 1/2 oz. feta cheese and half of the remaining thyme mixture. Broil until cheese softens and is glazed, about 2 minutes.Servings: