Preheat oven to 350 degrees.
Saute onions in butter until tender.
Whisk eggs in large bowl; add cream and spices.
Layer onions, bacon and cheese in pie shell. Portion egg custard over ingredients in shell, being careful not to overfill.
Bake 35-40 minutes. Cool 10 minutes.
Portion into wedges and serve on clean leaf lettuce fillets with fresh fruit salad and/or a toasted bread crouton.