This looks like a super hard and involved dish to prepare but trust me, it is simple…especially if you use a store-bought pie crust.
You can adjust the veggies to taste but I would recommend trying it with the ingredients listed in the recipe, for the first time, and then feel free to adjust it to your taste when you make it again.
The key is to make sure you add HEAPING tablespoons of flour, otherwise, the quiche will be too runny. A note of advice, let the quiche sit on the counter for about 10-15 minutes before slicing it. Leftovers can stay in the refrigerator for up to 5 days.