In a large mixing bowl, beat the reduced-fat cream cheese until smooth. Gradually add the fat-free sweetened condensed milk, beating until well combined.
Add the fresh lime juice, lime zest, tequila, and Cointreau, and mix until fully incorporated. Gently fold in the light whipped topping until the mixture is smooth and fluffy.
Pour the mixture into the reduced-fat Keebler Graham Cracker Pie Crust and spread evenly. Refrigerate for at least 2 hours or until set. Garnish with additional whipped topping and lime slices if desired.
This makes 6 BIG pieces of cheesecake. On WW, each slice is 18 WW Points. Enjoy!