This is a low fat low sugar recipe my mother in law gave me a few years ago. It can be modified to any kind of jell-o you'd prefer by changing the yogurt to another flavor or just vanilla.
Orange Creamsicle Pie
1 8oz package fat free cream cheese
1 8oz container light orange yogurt
5 tsp sugar or substitute
¼ tsp vanilla extract (I use a bit more, overflow the measuring spoon)
1 small package sugar free orange gelatin
1 cup fat free cool whip
1 reduced fat graham cracker pie crust
Beat cream cheese and yogurt until creamy, add sugar and vanilla extract and continue mixing. Stir in orange gelatin and beat to blend. Fold in cool whip. Pour into pie crust and chill at least 2 hours.