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Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe

Published: Apr 29, 2026 by Diane · This post may contain affiliate links · Leave a Comment

Jump to Recipe·4 from 66 reviews

If you’re on the hunt for a bright, healthy dish that’s both satisfying and packed with flavor, look no further than this Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe. It’s a light yet hearty breakfast or brunch option that lets the fresh vegetables shine, embraced by fluffy egg whites and the melty goodness of mozzarella and parmesan cheeses. This recipe perfectly balances guilt-free protein with savory, cheesy comfort—plus, it’s easy enough to whip up on a weekend morning or meal prep for the week ahead.

Ingredients You'll Need

The image shows a top view of ingredients on a white marbled surface. There is a large clear glass pitcher filled with yellow melted butter on the top left. Next to it on the right is a white bowl filled with pale brown and white sliced mushrooms. Below the pitcher, there is a small round dish with four sections containing black pepper, dried herbs, salt, and garlic powder. Below that is a small glass dish with a light yellow square piece of butter. To the right of that is another small glass bowl holding pale yellow grated parmesan cheese. On the bottom left is a white bowl full of green fresh spinach leaves. To the right of that and slightly above is a white bowl filled with thin purple and white sliced red onions. In the bottom right corner, there is a small white bowl filled with shredded pale yellow cheese. photo taken with an iphone --ar 4:5 --v 7

Every ingredient in this frittata is simple yet essential, working together to build layers of taste, texture, and vibrant color. From creamy cheeses to fresh veggies, each component adds its own little magic to this wholesome dish.

  • 2 cups egg whites: The base of the frittata, keeping it light and packed with lean protein.
  • ½ cup shredded mozzarella cheese: Adds a gooey, melty texture that makes every bite comforting.
  • 1 tablespoon grated parmesan cheese: Brings a sharp, nutty depth to enrich the flavor profile.
  • 1 teaspoon Italian seasoning: A fragrant blend that infuses herbs into the mix for an aromatic lift.
  • ½ teaspoon garlic powder: A subtle kick of garlicky goodness without overpowering the other ingredients.
  • ½ teaspoon salt: Balances flavors and enhances the natural savoriness of the dish.
  • ½ teaspoon black pepper: Adds a gentle heat and rounds out the seasoning.
  • 1 tablespoon unsalted butter: Used for sautéing, it adds richness and helps soften the vegetables.
  • 1 small red onion, thinly sliced: Offers a sweet, slightly pungent crunch that caramelizes beautifully.
  • 8 ounces sliced baby bella mushrooms: Earthy and meaty, these mushrooms give the frittata satisfying body.
  • 2 cups fresh baby spinach: Brings vibrant green color and a fresh, mild taste that balances the richness.

How to Make Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe

Step 1: Preheat and Prep Your Pan

Begin by heating your oven to 350℉. The ideal cookware is a 10-inch oven-safe skillet, which lets you cook and bake the frittata all in one. If you don’t have one, no worries—a lightly greased 9-inch round baking pan works just fine.

Step 2: Whisk Together the Egg Mixture

In a large mixing bowl, vigorously whisk the egg whites with the shredded mozzarella, grated parmesan, Italian seasoning, garlic powder, salt, and pepper. This mixture is the creamy, savory heart of your frittata, so make sure everything is well combined for even flavor throughout.

Step 3: Sauté the Vegetables to Perfection

Warm the tablespoon of butter in your skillet over medium heat until melted and shimmering. Add the thinly sliced red onions and baby bella mushrooms, cooking them just until they soften and develop a bit of color, about 4 to 5 minutes. Season lightly with salt and pepper, then stir in the baby spinach until it wilts down slightly. This step unlocks the flavors and soft textures that turn your vegetables from ordinary to extraordinary.

Step 4: Combine Vegetables and Eggs in the Pan

If you’re using your oven-proof skillet, pour your flavorful egg white mixture over the sautéed veggies and gently stir just to blend. Spread everything evenly to ensure each slice of frittata has a perfect veggie-to-egg balance. Using a baking pan? First layer the veggies evenly, then gently pour the egg mixture over, finishing with a sprinkle of extra mozzarella on top if you’re feeling indulgent.

Step 5: Bake Until Just Set

Pop the skillet or baking dish into your preheated oven and bake for 27 to 32 minutes. You’ll know it’s ready when the egg whites look firm and begin to pull slightly away from the edges. The frittata will puff up as it bakes, then settle beautifully once out of the oven. A 10-minute cooling phase helps everything settle for clean slices and maximum flavor enjoyment.

How to Serve Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe

A slice of frittata is lifted from a black cast iron skillet with a wooden handle. The frittata has three visible layers: a thick, light beige egg base at the bottom with a soft, slightly textured look; a middle layer of green spinach leaves and brown, thin mushroom slices evenly spread throughout; and a top layer of melted white cheese showing some golden brown spots, covering the greens and mushrooms. The skillet sits on a white marbled surface with a few mushrooms and spinach leaves around it. In the background, a white plate holds another frittata slice with a fork. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Enhance your frittata with fresh garnishes like chopped basil or chives to add a pop of herbal brightness. A light drizzle of extra virgin olive oil or a sprinkle of crushed red pepper flakes can also add a lovely finishing touch that excites the palate.

Side Dishes

This frittata pairs wonderfully with fresh fruit salad, crusty whole-grain toast, or a simple green salad dressed with lemon vinaigrette. These sides keep the meal balanced and fresh, perfect for a leisurely brunch or a light dinner.

Creative Ways to Present

For gatherings, slice the frittata into bite-sized squares and serve on a wooden board alongside fresh veggies and dips for an eye-catching appetizer. Alternatively, stack slices between lightly toasted bread for a wholesome, protein-packed sandwich to take on the go.

Make Ahead and Storage

Storing Leftovers

Once cooled, store any leftover frittata in an airtight container in the refrigerator for up to 3 days. This makes for a quick grab-and-go breakfast or lunch option during busy weekdays.

Freezing

You can freeze this frittata by wrapping slices tightly in plastic wrap and placing them in a freezer-safe bag or container. Freeze for up to 2 months. Thaw in the refrigerator overnight before reheating for best texture and taste.

Reheating

Reheat your frittata slices gently in a microwave for about 30 seconds to 1 minute or warm them in a preheated oven at 325℉ until heated through. Avoid high heat to keep the egg whites tender and prevent dryness.

FAQs

Can I add other vegetables to this frittata?

Absolutely! Feel free to mix in bell peppers, zucchini, or cherry tomatoes to make this Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe your own. Just sauté them along with the mushrooms and onions for the best flavor.

Is this recipe suitable for a low-fat diet?

Yes! Using egg whites instead of whole eggs reduces fat content significantly while still delivering ample protein. The modest amount of cheese adds flavor without overwhelming the dish.

Can I use pre-shredded cheeses for convenience?

Definitely. Pre-shredded mozzarella and grated parmesan work well here and speed up prep time. Just make sure to check for any added anti-caking agents in pre-shredded cheeses if you’re looking for the purest flavor.

What is the best way to ensure the frittata cooks evenly?

Using an oven-safe skillet helps the frittata cook evenly from both the stovetop and oven. Also, distributing the veggies evenly and not overfilling your pan will help achieve a consistent texture.

Can I make this recipe vegan?

This recipe relies on egg whites and cheese, so it isn’t vegan as is. However, you can experiment with tofu-based scrambles and vegan cheese alternatives for a plant-based twist inspired by this recipe.

Final Thoughts

Trying the Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe is genuinely like giving your taste buds a warm, nourishing hug. It’s a recipe that feels fancy without the fuss, perfect for anyone who loves fresh veggies, cheesy goodness, and simple yet thoughtful meals. Give it a go—you might just find your new favorite way to start the day or enjoy a wholesome snack anytime.

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Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe

Egg White Vegetable Frittata with Mozzarella and Parmesan Recipe


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4 from 66 reviews

  • Author: Diane
  • Total Time: 42 minutes
  • Yield: 8 servings
  • Diet: Low Fat
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Description

This light and fluffy Egg White Frittata is a healthy and delicious breakfast or brunch option packed with protein and vegetables. Made with egg whites, baby bella mushrooms, spinach, and a blend of mozzarella and parmesan cheese, it's seasoned with Italian herbs and garlic powder for a flavorful, low-fat meal. Perfectly baked to a golden finish, this frittata is easy to prepare and serves eight people.


Ingredients

Egg Mixture

  • 2 cups egg whites (roughly 12 egg whites)
  • ½ cup shredded mozzarella cheese (plus more for topping, if desired)
  • 1 tablespoon grated parmesan cheese
  • 1 teaspoon Italian seasoning
  • ½ teaspoon garlic powder
  • ½ teaspoon salt
  • ½ teaspoon black pepper

Vegetables & Other

  • 1 tablespoon unsalted butter
  • 1 small red onion, thinly sliced
  • 8 ounces sliced baby bella mushrooms
  • 2 cups fresh baby spinach


Instructions

  1. Preheat Oven: Preheat your oven to 350℉. Prepare your cooking vessel by either using a 10-inch oven-proof skillet or lightly greasing a 9-inch round pan with cooking spray to prevent sticking.
  2. Mix Egg Whites and Seasonings: In a large mixing bowl, whisk together the egg whites, shredded mozzarella cheese, grated parmesan cheese, Italian seasoning, garlic powder, salt, and black pepper until well combined. Set this mixture aside.
  3. Sauté Vegetables: Heat the unsalted butter in a 9-inch skillet or oven-proof skillet over medium heat. Add the thinly sliced red onions and baby bella mushrooms. Sauté for about 4-5 minutes until the vegetables are slightly softened. Season with salt and pepper to taste. Stir in the fresh baby spinach just until it begins to wilt, then remove the skillet from the heat.
  4. Combine and Assemble: If baking the frittata in the skillet, pour the egg white mixture over the sautéed vegetables and gently stir to distribute vegetables evenly. If using the round pan, spread the sautéed vegetables evenly on the bottom of the pan and then pour the egg white mixture on top. Optionally, sprinkle additional shredded mozzarella cheese on top for extra cheesiness.
  5. Bake the Frittata: Place the skillet or pan in the preheated oven and bake for 27-32 minutes until the egg whites are fully set and start to pull away from the edges. The frittata will puff up during baking and will slightly deflate when removed.
  6. Cool and Serve: Remove the frittata from the oven and allow it to cool for about 10 minutes. Slice into portions and serve immediately for the best flavor and texture.

Notes

  • You can use a 10-inch oven-safe skillet to cook and bake in the same pan, which makes cleanup easier.
  • Feel free to add other vegetables like bell peppers or zucchini for variety.
  • For a richer flavor, sprinkle extra cheese on top before baking.
  • Ensure the frittata is cooked until the egg whites are fully set to avoid runniness.
  • Leftovers can be refrigerated and eaten cold or reheated gently in the microwave or oven.
  • Prep Time: 10 minutes
  • Cook Time: 32 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

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