Sour Cream and Cheddar Potatoes

6 to 8 medium potatoes
1 to 2 cups sour cream
salt and pepper
1/4 cup chopped green onion
2 cups shredded cheese

Peel and boil potatoes in boiling water.  Drain and mash.
Whip with sufficient sour cream to give a light creamy 
consistency.  
Add green onions, salt and pepper to taste.
Place in a buttered casserole, top with cheese, and 
bake in 350 F. oven until cheese is crusty and golden 
brown, about 20 minutes.  Serves 4 to 6.