No-Bake Cheesecake

1   9" graham cracker pie crust
1 8oz. pkg cream cheese, softened
1 14oz. Can sweetened condensed milk
1/3 c lemon juice
1 t vanilla extract
Canned pie filling
1. Beat cheese until light and fluffy.
2. Add condensed milk and blend thoroughly.
3. Stir in lemon juice and vanilla.
4.  Pour into crust and chill for 2 hours.
5. Top with filling before serving.
6. Refrigerate leftovers.