Vegetable Quiche With Sweet Potato Crust  

Crust

1. Place the crisper plate into the air fryer basket. 
2. Select the Air Fry function at 385°F, adjust time to 4 minutes, then tap Start/Pause to preheat.
3. Place the shredded sweet potato, egg, salt, and pepper in a large bowl and stir to combine to start the crust.
4. Line an 8-inch round pan with parchment paper, then spread and press the sweet potato mixture into the bottom and sides of the pan. Spray with avocado oil spray. 
5. Place the pan carefully onto the preheated crisper plate.
6. Select the Air Fry function at 10 minutes, adjust temperature to 370°F, then tap Start/Pause. 
7. Remove crust when golden brown. 

Filling

1. Place a skillet over medium-high heat. Add the olive oil, then add the diced onion, bell pepper, mushrooms, salt, and pepper to make the filling. Sauté for 5 minutes or until softened.
2. Add the baby spinach and cook until just wilted. Remove skillet from heat, then spread the vegetable mixture on top of the sweet potato crust.  
3. Whisk the eggs, egg whites, milk, and Parmesan cheese in a medium bowl. Pour egg mixture over the vegetables, then place the pan back onto the crisper plate. 
4. Select the Bake function at 20 minutes, adjust temperature to 300°F, then tap Start/Pause. 
5. Remove quiche when the top is golden brown and the filling is set. Allow to set for 5 minutes, then cut into wedges and serve.