HEAT oven to 350ºF.
BROWN sausage in large skillet on medium-high heat. Meanwhile, drain potatoes, reserving syrup.
ADD water and reserved syrup to sausage; bring to boil. Slice potatoes. Add to sausage mixture with stuffing mix; stir just until moistened. Spoon into 1-1/2-qt. casserole; cover.
BAKE 20 min. or until heated through.