Boil potatoes as you would for mashed potatoes. Drain
Mash potatoes with remaining ingredients adding garlic to desired taste.
Spread into a greased casserole. Dot with margarine. Cover. Bake at 350 degrees for 45 - 60 minutes.
HINT: This is a wonderful make ahead recipe. You may need to bake longer if taking from the fridge to the oven.
This recipe works well with meats that do not make gravy. Example: Steak, pork chops, meatloaf etc.