In a large mixing bowl, beat cream cheese, sugar and vanilla until smooth.
Add eggs; beat on low speed just until combined.
Stir in chocolate chips and once combined, pour into crust.
Place pan on baking sheet (it will leak some, so this is important!). Bake at 325 degrees for 50 to 55 minutes or until center is almost set.
Cool for 10 min., then run a knife carefully around the edge of the pan to loosen.
Cool at room temp for 1 hr. then refrigerate for at least 6 hrs, before serving.