Sausage Cheddar and Spinach Quiche

So my husband likes quiche and he was asking for it last month.  We had some spinach that I had gotten in our Bountiful Basket that needed to be used, as well as some red bell peppers.  I had some country sausage in the freezer, so I decided I would see what I could do with the combination.  Here is what I came up with:

Sausage Cheddar and Spinach Quiche

1/2 recipe pie crust, recipe found here
1 lb regular country sausage, or lean country sausage
1 red bell pepper, diced
1 bunch spinach, washed and chopped
1 c sharp cheddar cheese
6 eggs, separated
1 c milk

Roll out pie crust and place in pie dish, and crimp edges.  Set aside.

Brown sausage and crumble into small pieces.  Add bell peppers and cook til tender, and then add your spinach and cook til wilted into the peppers and sausage.  Set aside.

Whip egg whites with hand mixer or in a stand mixer til you get stiff peaks.  Mix egg yolks, milk, and cheese in a small bowl.  Add whipped egg whites, and then your sausage mixture, and combine til well mixed.  Pour this into your prepared pie pan, and bake for 35 minutes at 375 degrees.  Serve hot.