Great Dinner Invention with Leftovers - Cheesy Casserole

With some leftovers and Wildtree, I was able to 'wing it' and made a fantastic Au Gratin Potato Casserole with Mushrooms, Ham, and Turkey.

I used:

3 leftover baked potatoes with skins peeled off, sliced, diced, or 'chunked'
two cups skim milk
one cup water
two tablespoons WildTree Butter Flavored Grapeseed Oil, 1/4 cup of WildTree Alfredo Extraordinare.
1/4 (approx.) of grated Parmesan cheese (I just finished off what was left in the container)
1/4 cup shredded cheddar cheese
1 small (4oz.) can of mushrooms
2 slices of lunchmeat turkey,
3 slices of lunchmeat ham sliced into squares or torn into pieces

Combine all ingredients in casserole dish, cover and place in preheated over at 400F for 40 minutes. Remove lid and keep in oven for 5-10 minutes until the top is brown enough to your liking.