1 box pistachio pudding
1 (#2) can crushed pineapple, don't drain
1 c. mini marshmallows
1 (9 oz.) tub Cool whip
1/2 c. chopped pecans or walnuts (optional)

Combine pudding and pineapple. Add marshmallows, Cool Whip and nuts. Stir all together. Tastes best if made the day before.