In medium microwave safe bowl, combine chocolate chips and milk. Microwave on MEDIUM (50% power) 1 1/2 minutes stirring every 30 seconds.
Stir until chocolate is completely melted and smooth.
Stir in vanilla.
Pour chocolate into baked pie crust.
Refrigerate at least 2 hours.
Before serving, stir together strawberries and whipped topping in medium bow.
Spread over chocolate layer.
Garnish with chocolate nonpareils (optional)