In a small bowl, stir together the garlic, rosemary, thyme, pepper and salt. Rub the lemon juice into the lamb.
Spread the garlic mixture over the lamb.
Cover and refrigerate for 3 to 4 hours.
Preheat the oven to 300 degrees.
Coat a roasting rack with nonstick spray and place the rack in a roasting pan.
Place the lamb on the rack and roast for 1 hour.
In a small bowl, stir together the bread crumbs and parsley.
Stir in the water and oil to make a paste.
Using the back of a large spoon, spread the paste over the lamb.
Bake for 55 to 70 minutes, or until a meat thermometer registers 145 degrees (medium-rare) to 160 degrees (medium).
Makes 8 servings