Skinny Potato Gratin Ingredients olive oil spray (I used my misto) 6 medium peeled yukon gold potatoes, sliced 1/8-inch-thick (2 lb 4 oz peeled) 2 tbsp light butter, melted salt and fresh pepper to taste 1/2 tsp garlic powder 3 oz (3/4 cup) shredded reduced fat Cheddar (I used Cabot) 1 cup fat free