
Flaky crust filled with fresh eggs, mushrooms, onions, and bell peppers. Brought together with tangy feta and gooey mozzarella cheeses.
Preheat the oven to 350 degrees.
Heat a large skillet with olive oil over medium-high heat. Add the mushrooms, onion, and bell pepper to the pan. Cook until softened, about 5-7 minutes, and season with salt and pepper.
Add the spinach and cover the pan with a lid. Allow the spinach to cook and wilt, for about 5 minutes.
Add the garlic and stir to combine and allow to heat through. Once the garlic becomes fragrant, turn off the heat and set aside for a moment.
Beat the eggs and milk with a fork in a large mixing bowl, and season with salt and pepper. Add the feta and mozzarella cheeses, saving a small amount for topping. Add the cooked vegetables and stir to combine well.
Pour the mixture into the unbaked pie crust (frozen, thawed or fresh). Sprinkle the remaining cheeses on top. With a clean finger or pastry brush, smooth some of the egg mixture left in the bowl on the exposed rim of the crust. This will give it a shiny appearance when it bakes.
Place in the oven and bake for 45-60 minutes covered loosely with aluminum foil. It will puff up in the middle when fully baked, then collapse when it cools.