Bacon, Caramelized Onion & Spinach Quiche

I made this delicious quiche last night for dinner. It basically is the product of taking parts of about 4 different quiche recipes I found online and making one that is my own.

Bacon, Caramelized Onion & Spinach Quiche

1 frozen pie crust
5 eggs
1/2 cup of buttermilk
1 cup of fat free half & half
1 pkg of bacon (I used center cut 40% less fat), chopped
1 onion, sliced thinly then halved
1 1/2 cups of fresh spinach, chopped
1/4 cup shredded parmigiano reggiano
1 cup shredded Swiss cheese
2 tbsp butter
crushed red pepper flakes

Heat butter in a large skillet over medium high heat until melted. Put all of the bacon into the pan and cook until crispy, constantly serving. Move bacon to paper towels to drain.

Drain enough of the bacon renderings that only enough is left to coat the bottom of the pan. Put the onion into the pan and saute until caramelized. Remove onions to the paper towels.

In the same pan, saute the spinach until wilted. Remove spinach to the paper towels.

Preheat oven to 375 degrees.

In the bottom of the pie shell, place the bacon. Then layer with the onion. Sprinkle the parmigiano reggiano evenly over the bacon. Then layer with the spinach. Then layer with the Swiss.

In a medium bowl, whisk the 5 eggs until fluffy. Then add the buttermilk and half & half. Whisk until well blended. Add salt, pepper, nutmeg and red pepper flakes to taste.

Bake 40 minutes or until center is set.