After slicing, rinse potatoes and pat dry with paper towels.
Brush 1 Tbsp. butter onto bottom and up sides of a 9-inch pie plate. Toss potatoes with remaining butter and 1/4 cup of the cheese; layer on bottom and up sides of pie plate. Sprinkle with remaining cheese.
Bake in a preheated 425º oven for 1 hour or until potatoes are tender. Loosen potatoes from side and bottom of pie plate; invert immediately onto serving plate. Garnish with chopped fresh chives if desired before serving.