1) Take a big bowl and combine the Neufchatel cheese, lemon low-fat yogurt and sugar.
2) Add lemon juice and mix them well.
3) Take a saucepan filled with water. Put the gelatin into the water and cook on low heat till the gelatin is dissolved.
4) Add the gelatin to cheese mixture and beat them.
5) Take the egg whites and beat them.
6) Now, fold the egg whites and lemon rind into the cheese mixture.
7) Pour the mixture into 4 individual dessert dishes. Keep them in the freezer until completely set.