Preheat your oven to 375°F (190°C).
In a large mixing bowl, whisk together the eggs and milk until well combined.
Stir in the shredded cheese, and season with salt and pepper.
Add in your chopped vegetables and mix thoroughly.
Grease a pie dish or quiche pan with cooking spray or olive oil.
Pour the egg mixture into the prepared dish.
Bake in the preheated oven for 25-30 minutes or until the top is golden brown.
Remove from the oven and let it cool for a few minutes.
Slice into wedges and serve warm.
Enjoy your crustless quiche with a side salad or fresh herbs!