1-2 c. sliced mild onion
2 tbsp. butter
1/2 lb. Swiss cheese, grated
9" unbaked pie shell
3 eggs, beaten
1 1/2 c. milk
1 tsp. salt
1/4 tsp. pepper
Dash nutmeg
3 strips crisp bacon, crumbled (optional)

Saute onion in butter until golden and soft. Put with cheese in pie shell. Combine remaining ingredients and pour over cheese and onions. Bake in moderate oven, 375 degrees, for 45 minutes to 1 hour or until knife blade comes out clean. Cool slightly before serving.