To cook the bacon, I recommend doing it in the oven. Line a cookie sheet with foil. Lay out bacon and cook at 400 degrees for 18-20 minutes. Meanwhile, beat egg whites until a bit frothy. Add milk and cream cheese and egg yolks. Beat until well mixed and add spices. Cool then crumble. Turn oven up to 425 and cook the pie crust for about 5 minutes. Take out and cool. Turn oven down to 375. Drain and squeeze the spinach between paper towels to get out as much water as you can. Sprinkle the bacon onto the pie crust, top with spinach and cheeses. Finally pour in egg mixture and cook for about 40 minutes at 375. Quiche will be done when a knife can be inserted in the center and it comes out clean.