1 sm. pkg. pistachio pudding and pie filling, prepared
1 lg. can crushed pineapple, drained
1 1/2 c. miniature marshmallows
1/2 c. chopped pecans
1 (9 oz.) container Cool Whip

Mix pudding and crushed pineapple. Add Cool Whip and mix well. Add pecans and marshmallows. Mix well. Refrigerate about 2 hours before serving.