I make this all the time for a cool dessert but I do not use the crust.
I mix 2 Lage containers Light / Fat Free Cool=Whip 1 Large Sugar Free Yogurt (you know Light Yogurt) Mix well pour into large 9X13 baking dish and freeze or pour in bathroom size cups ( 3 or 5oz. size) insert popsicle stick and freeze. Remove from freezer 5 to 10 minutes prior to cutting or removing from cups.