My husband and I had a favorite restaurant called Harrigan's. They are no longer in business and we miss their menu so much. They served this New Orleans Potato Casserole and it was one of our favorites. I searched for the recipe and finally found one however it called for 5 pounds of potatoes. I have modified the recipe to use about 1.5 pounds of potatoes. I hope you enjoy this as much as we do! This recipe makes about 4 cups of casserole.