Mix cream cheese, 1 tablespoon milk and sugar in a large bowl with wire whisk until smooth. Gently stir in cool whip and spread on bottom of crust. Pour 1 cup of milk into a bowl. Add pudding mixes. Beat with a wire whisk for 1 minute. Mixture will be thick. Stir in pumpkin and spices with wire whisk until well mixed. Spread over cream cheese mixture. Refrigerate 4 hours or until set.