Bake crust at 425 in an 8 inch pie or tart pan until set and dry. (8-12 minutes)
SautÃ© onions in butter until transparent
In a medium bowl, beat eggs lightly with a fork. Stir in sour cream and light cream, salt and pepper. Stir in onion, spinach, and cheese
Pour egg mixture into the hot, baked pastry crust. Bake at 325 degrees for about 45 minutes, or until a knife inserted into the center comes out clean.
Let quiche rest for 10 minutes before serving.
Makes 6-8 servings.