This low carb Crustless Spinach Quiche is a creamy, cheesy egg breakfast casserole loaded with spinach and vegetables, Greek Seasoning, and feta cheese, which makes an easy and delicious gluten free breakfast or brunch!
In a large skillet over medium heat, add olive oil. When the oil is hot, add the onions, red and green bell peppers. Cook until the vegetables are soft.
Add spinach. It will look like a LOT. Don't worry, it cooks down in about 2 minutes.
Add minced garlic and stir for about 1 minute.
In a large bowl, whisk together the eggs and milk. Add salt and pepper to taste.
Add in the Greek Seasoning.
Stir in Cheddar cheese and crumbled feta.
Add in the spinach and other vegetables in the egg mixture. Stir until combined.