Instant pudding makes the filling a breeze to whip up. We’d recommend going with vanilla or cheesecake flavored pudding mix, but you could always get creative with other options. Cream cheese and cool whip bump the creaminess all the way up, and a hefty two cans of crushed pineapple ensure that there will be plenty of tang in every bite. The filling is spread in the dish first, then a layer of additional cool whip, and finally the crunchy pretzel topping.