I have passed this off as potatoes to people who absolutely hated turnips. They actually liked it so much that they asked for seconds and wanted me to make it again. You can substitute half and half or evaporated milk for the heavy cream to cut down on fat.
This recipe is by far the best Pineapple Upside Down cake that I've ever made. It is also quick and easy. The cake is very moist and rises much higher than the average recipe. The combination of pineapple cake mix and pineapple juice isn't overwhelming either. I've been meaning to edit this for ages, however it looks so much better if you use dark brown sugar. Also if you'd like more topping, use 3/4 cup butter with 1 1/2 cups dark brown sugar.
You can use this on so many different things. By adjusting the cooking time, you can make it as thick as you like according to what you are going to use it on. I like to make it thicker to use on ice cream and thinner for desserts. I often double the recipe so I have some left over for later.