1 (20 oz.) can crushed pineapple (in juice)
1 (4 1/2 oz.) pkg. pistachio instant pudding
1/2 c. chopped walnuts
1 c. miniature marshmallows
8 oz. Cool Whip
1 lg. sour cream

Mix pineapple and pudding. Mix together with spoon, then all other ingredients. Mix thoroughly and chill.