Preheat oven to 350°.
Prep all ingredients by chopping the bacon, scallions, and onion. Shred the gruyere and cube the brie. Set all ingredients aside.
In a flat pan, add chopped bacon and let cook until brown. Remove the bacon and cook the onions using the bacon grease until caramelized.
Meanwhile, place frozen pie crust in the oven and let cook for 10 minutes or until lightly browned (this will be going back in the oven so make sure it is not overcooked).
Crack the two eggs into a bowl and whisk together. Add the milk and continue whisking for another minute.
Add all of the dry ingredients to the pie crust and slowly pour in the egg mixture.
Bake quiche for 25-30 minutes or until the top is nicely browned.
Enjoy!
