My husband loves potatoes and from time to time requests scalloped potatoes, which his mom would make him and his siblings for dinner when he was growing up. Im Italian so we never had this as a "dinner"... but anyhow here is my version. He liked it as much as his moms. So life is good :)
In a pan saute diced onions until almost golden. Move off to the side and add the cut up bacon and cook til its almost crispy. Add ham and cook until heated thru. Mix everything in the pan and turn off the heat.
Preheat oven to 350. Spray a shallow 2 qt baking dish with your choice of cooking spray. (I used butter flavor)
In a large bowl mix: alfredo sauce, cream of mushroom sauce, can of 1/2 & 1/2 (you can use milk) a few spoonfuls of grated parmesan, chives, and cayenne pepper. Then add your onion, bacon, ham mixture to that and mix well.
Slice the potatoes thin (you can leave skin on or use a peeler to take it off)and add to mixture in the bowl. Mix as you add the potatoes.
Layer 1/2 of your potato mixture to you baking dish. Add some grated parmesan (I didnt measure just use as much or as little as you like) Add the French's Fried Onions and half of the shredded cheese. Add the rest of the potatoes and add the rest of the Frenchs Fried Onions, another good handful of grated parmesan and the rest of the shredded cheese.
Cover with foil and then bake. I baked it for 2 hours covered. You could take the foil off the last 15 mins if you want the top a little more golden. Let stand about 10-15 mins before serving.