3place in stainless steel sauce-pan then add garlic, and all seasonings.
4Cover w/ water and cook 20 minutes on medium heat. remove cover during last 5 minutes for some water to escape.
5Add Half n half then place 1/2 potato mixture in casserole dish cover layer w/ cheese, then place remaining potato mixture and top w/ cheese. Bake uncovered at 300-350 degrees approx. 25 minutes or so according to how hot your oven gets. mine gets hot hot, so I actually cooked at 300. For reheating leftovers you do want to cover to reheat otherwise the edges get too brown and dry. Tip: just add Half n Half around edges if worried about that. (cheaters tip.) smiles
6Optional: I just happened to have prepare broiled mushrooms n cheese the night prior therefore I put them on top layer and added more cheese of course. Adds a chewy Cheesey deliciousness.
Also you can leave off the Oregano if your family is picky about spices. but I say bring it on because there's nutrition in seasonings.