Beat the egg, than add the sour cream, pepper, onion, ham, chives and 1 cup of cheese, stirring to blend. The mixture will be lumpy.
Pour into a greased 8" baking pan and bake in a preheated 375�F, oven for 35 minutes.
When set, remove from the oven, sprinkle with the remaining 1/4 cup cheese, and return to the oven long enough to melt the cheese topping, about 3 minutes.