In pan bacon was cooked in, drain off all but one tablespoon of bacon drippings. Cook onion and potatoes
until soft. Add ham and mushrooms and heat through, remove from heat.
Mix together in a large bowl, 2 tablespoons flour, 4 eggs, 2 cups Half & Half, 1 teaspoon salt, 1/4 teaspoon
pepper, 1/2 teaspoon oregano, 1/2 teaspoon Rosemary, mix well. Add the grated cheese, bacon, ham, onion, potatoes, mushrooms, grated Parmessan cheese, sour cream and well drained chopped spinach. (Drain spinach by squeezing it very well with your hands.) Mix all ingredients well and pour into unbaked pie shell.
Bake at 350º for 40 to 45 minutes, or until puffed and brown. Cool 30 minutes before cutting into 8 wedges.