Graham-Cracker Key Lime Pie
["1/4 c. boiling water", "1 (3 oz.) box sugar-free lime gelatin", "2 (8 oz.) cartons Key lime nonfat yogurt", "1 (8 oz.) carton nonfat whipped topping, thawed", "1 graham cracker pie crust (low-fat, 9-inch)"]
["Dissolve gelatin in boiling water.", "Stir in yogurt.", "Fold in whipped topping; mix well. Fill pie crust and refrigerate for 12 hours. Garnish with lime slices or mint leaves.", "Yield: 8 servings."]
["boiling water", "lime gelatin", "lime nonfat yogurt", "nonfat whipped topping", "graham cracker pie crust"]