Pistachio Salad or Watergate Salad

Favorite of Dougs for Thanksgiving.  At my house it was called Watergate salad.  It is a pretty sweet salad.

Ingredients:

2 cans pineapple tidbits, drained
2 cans Mandarin oranges, drained
2 Packages Pistachio instant pudding, dry
 1 c  red grapes, sliced
 1/2  c. pecans, chopped
2 cups mini marshmallows
1 10-12 oz cool whip

Mis all ingredients together and chill until ready to serve.