If you're looking for a hearty and wholesome way to start your day, this Savory Spinach & Mushroom Breakfast Casserole is your new best friend. It's packed with nutritious ingredients and delivers a delightful mix of flavors and textures. Perfect for feeding a crowd or meal-prepping for the week!
Eggs form the base of this casserole, providing structure and protein. The whole milk adds richness and helps bind everything together. A mix of mozzarella cheese and parmesan cheese brings a creamy, savory depth to the dish. Spinach and mushrooms are not only healthy additions but also give the casserole a wonderful earthiness. Onions and garlic offer aromatic notes that enhance every bite. Olive oil is used to sauté the vegetables, adding a subtle fruity flavor. Whole-grain bread cubes soak up the egg mixture, providing a hearty texture. Finally, fresh parsley brightens and finishes the dish beautifully.
This casserole pairs wonderfully with a fresh fruit salad or a simple side of roasted tomatoes. If you're feeling indulgent, serve it alongside crispy bacon or breakfast sausages. A light arugula salad with a lemon vinaigrette also complements the rich flavors beautifully.
Start by preheating your oven to 350°F (175°C). Grease a 9x13-inch baking dish well, so your casserole doesn’t stick. Next, heat a tablespoon of olive oil in a skillet over medium. Toss in the diced onions and minced garlic, letting them get translucent and fragrant—should take about 3-4 minutes. Add the sliced mushrooms, cooking them until they're tender and have released their moisture. This usually takes another 5 minutes. Lastly, stir in the chopped spinach, letting it wilt down. It should only take a minute or two.
In a large mixing bowl, crack open those 8 eggs and whisk them together with the milk, salt, and pepper. You're aiming for a well-blended mixture. Fold in the shredded mozzarella and grated parmesan, ensuring the cheeses are evenly distributed. Now, add the sautéed veggies and bread cubes. Give it a good mix so the bread absorbs the eggy goodness.
Pour the mixture into your prepared baking dish, spreading it out to make it even. Pop it into the oven and let it bake for 45-50 minutes. You’ll know it’s done when the top is golden brown and the center is set. Let it cool for about 5 minutes, then sprinkle with chopped parsley before serving.
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