Watergate Salad

Combine:

1 can (20 oz.) crushed pineapple in juice

1 pkg. (3.4 oz.0 Jell-o pistachio instant pudding

1 c. mini marshmallows

1/2 c. chopped pecans 

Stir in:

1 1/2 c. thawed Cool Whip

Refrigerate:

1 hr