Preheat oven to 350.
6 to 7 potatoes, peeled and sliced about 1/8 inch thick
1 can cream of mushroom soup
2/3 can half and half or heavy cream. I think milk will work too.
2 cups cheese, cheddar, or a mixture of your favorite kinds.
Salt, pepper and garlic powder to taste.
Butter a rectangular pan, about 12 x 9 size or larger.
Place half of the sliced potatoes in the pan.
Mix together the soup, half and half , salt, pepper and garlic powder.
Spoon half of this mixture on top of potatoes.
Top wit half the cheese.
Place remaining potatoes on top and repeat layering.
Sprinkle a little pepper on top and bake uncovered for about 30 minutes, cover and continue baking about another 30 to 40 minutes, until potatoes are done. Enjoy!