This easy, tasty Spinach Mushroom and Feta Crustless Quiche is low on carbs and big on flavor. This veggie-filled breakfast will keep you full and happy.
Preheat the oven to 350ºF. Thaw and squeeze as much moisture out the spinach as possible.
Rinse any dirt or debris from the mushrooms, then slice thinly. Mince the garlic.
Add the mushrooms, garlic, salt, and a ½ Tbsp cooking oil to a skillet. Sauté the mushrooms over medium heat until they have released all of their moisture and it has evaporated from the skillet. No water should remain in the skillet.
Brush the other ½ Tbsp cooking oil inside a 9-inch pie plate.**** Layer the mushrooms, spinach, and crumbled feta into the pie plate.
In a large bowl, whisk together the eggs, Parmesan, pepper, and milk.
Pour the egg mixture into the pie plate over the spinach, mushrooms, and feta. Top with the shredded mozzarella.
Bake the crustless quiche in the preheated 350ºF oven for about 50 minutes, or until it is golden brown on top and the internal temperature reaches 160ºF. Slice and enjoy!
*Be sure to thaw the frozen spinach and give it a good squeeze to remove excess moisture (otherwise, you'll end up with a watery quiche). You can also use fresh spinach, with a 1 lb. bag of fresh spinach being equivalent to a 10-oz package of frozen spinach once cooked down. I recommend sautéing the fresh spinach first to cook the moisture out.**I use four large eggs as the base of this no crust quiche. Using larger or smaller eggs will affect the final results, so I recommend sticking with large eggs for this recipe.***The milk thins out the egg mixture to create a deliciously soft texture when baked. I usually use whole milk or 2%, but some of our readers have successfully used half and half and 1% milk. Almond milk will also work for a dairy-free option.****I use a 9-inch glass pie plate. A larger dish will make a thinner quiche that cooks faster, while a smaller dish will likely overflow unless you reduce the ingredients. A glass or ceramic pie plate will work here. Metal pans tend to heat faster, so it may brown more at the edges before the center is cooked through.