Sweet potatoes make a quick and easy gluten free crust for this quiche. Fill it with your favorite things or follow my recipe for a delicious spinach and gruyere quiche!
Preheat oven to 400°F. Spray a 9-inch pie pan with cooking spray and layer the sweet potato rounds, overlapping them. Bake at 400F for 15 minutes. Cool for 5 and gently use a spoon or spatula to press the sweet potato down into the pan.
Reduce oven temperature to 375°F.
Whisk the eggs, milk, and cheese, together adding the salt & pepper as you whisk. Fold in additional ingredients, if using. Pour the egg mixture over the sweet potato crust. Top with a little more cheese if you have it. Bake for 20 minutes at 375°F until it is set in center.