This easy breakfast quiche recipe is just 157 calories, and is so easy and packed full of flavor... you'll love it!To make this healthy breakfast quiche extra easy, we used store-bought pie crust (and it's still super low in calories!) But you can use your favorite pie crust recipe if you prefer.Special Tip: You can turn this vegetarian breakfast quiche into a meaty one... Add 1/2 cup cooked breakfast sausage or ham in step #4.