1 (9-inch) unbaked pastry shell
1 c. semi-sweet chocolate chips
1/4 c. butter
1 (14 oz.) can Eagle Brand sweetened condensed milk
1/2 c. all-purpose biscuit baking mix
2 eggs
1 tsp. vanilla extract
1 c. nuts, chopped

Heat oven to 375 degrees. Bake pastry shell 10 minutes; remove from oven. Reduce oven temperature to 325 degrees. In saucepan, over very low heat, melt chips with butter. In large mixer bowl, beat chocolate mixture with remaining ingredients (except nuts) until smooth. Stir in nuts; pour into prepared pastry shell. Bake 35 to 45 minutes, or until center is set. Cool. Serve warm or at room temperature with ice cream, if desired.