Preheat oven to 375°F. Place 12 cupcake liners in a muffin pan.
In a small bowl, combine graham cracker crumbs and butter; mix well. Spoon 1 tablespoon crumb mixture into the bottom of each liner and press down gently; refrigerate until ready to use.
In a medium mixing bowl, beat both cream cheese types until fluffy. Add lemon juice, egg whites, vanilla extract and sugar; beat until smooth.
Spoon cream cheese mixture evenly into cupcake liners.
Bake for 15 minutes or until set. Remove from oven and let cool.
Top each cheesecake with 1 tablespoon pie filling.