Pineapple Pie Dessert

1 yellow cake mix
2 eggs
1/2c. oil

1 lg pkg vanilla pudding ,mix with milk then chill
2 1/2 c milk

1 can Pineapple tidbits, drain juice
1 8oz tub cool whip

Mix first three ing. And press into bottom of 9x13 pan Bake 350 for approx 15-20 mins or until golden brown do not over bake or crust will be hard. Let cool. Sprinkle pineapple over cooled crust spread pudding evenly over pineapple, then spread cool whip over pudding. Chill until ready to serve.