Preheat oven to 400º.
Sauté onions in butter until translucent, about 10 minutes. Set aside to cool.
Combine eggs, sour cream, salt, pepper and spice(s). Blend well and add cooled onions.
Spread shredded cheddar in bottom of pie shell.
Pour into pie shell and top with crumbled bacon.
Bake at 400° for 10 minutes, then reduce temp to 350° and bake until crust is lightly browned, and filling is set, about 45 minutes.
Let set for 10-15 minutes before cutting. Serve with fresh green salad and enjoy!