Total Calories: 144
Thinly slice the potatoes and place in a greased shallow 2 quart baking dish. In a small saucepan, heat butter, onion, salt, thyme, and pepper until the butter is melted. Drizzle over potatoes. Cover and bake at 425 for 45 minutes or until potatoes are tender. Sprinkle with cheese and bake, uncovered for a few minutes or until cheese melts.