Bake a yellow cake (follow cake recipe), but add 2 packages of French vanilla (instant as directions says) pudding as a topping (for regular cake size) for cake instead of icing.
Pour over the cake.
Then drain one large can of crushed pineapple and spread all over top of pudding.
Then top pineapples with Cool Whip (1 tub).
Sprinkle with 2 cups of coconut and sprinkle chopped finely chopped pecans as decoration.