4 to 5 med. potatoes
1 egg
1/2 c. milk
1/2 c. Parmesan cheese
2 tbsp. butter
Salt and pepper
Parsley

Peel and quarter potatoes, boil until soft. Drain. Whip potatoes with rest of ingredients until smooth. Add milk if necessary. Spoon into a casserole dish and cover. Bake at 350 degrees for 15 to 20 minutes. Remove cover and bake another 5 to 10 minutes until top is brown.