These mini pies should be made in a regular size muffin tin. Just use a wide canning lid to cut the crust into correctly sized circles. Place those circles into your regular size muffin tin. Be sure to spray the tin with cooking spray to prevent sticking. Press down into the bottom and up the sides of each of the cups.
Mix the butter, sugar, eggs, flour, and vanilla. Then stir in the pecans and chocolate chips.
Pour the mixture into your pie crusts. Each cup should be 2/3 to 3/4 full.
Bake at 350 degrees for 22-24 minutes. You can garnish each with a whole pecan on top if desired.