The first time I baked an egg white frittata with feta, it was a rushed Tuesday morning. The house still felt sleepy, the coffee smelled strong, and I needed something light but satisfying. I whisked egg whites, tossed in spinach and tomatoes, crumbled in salty feta, and crossed my fingers. Twenty minutes later, I had a golden, fluffy pan of breakfast that tasted way richer than it looked. Since then, this egg white frittata with feta has become my go-to when I want a cozy, protein-packed meal without feeling weighed down.
Why you’ll love this egg white frittata with feta
You know those breakfasts that keep you full but don’t make you feel like taking a nap at 10 a.m.? That’s exactly what this egg white frittata with feta does. Egg whites bring serious protein with almost no fat, while feta adds creamy, salty pops of flavor in every bite.
Because we build this frittata with plenty of veggies—spinach, bell peppers, and juicy tomatoes—you get color, texture, and fiber without much extra work. It feels like a full brunch spread baked into one pan.
This dish also fits into real life. You can bake it once and enjoy slices all week for Breakfast, pack it cold for lunch, or serve it with a big salad for a light dinner. It reheats like a dream, so it’s perfect for meal prep days. And since we use everyday ingredients, you probably have almost everything you need right now.
Egg White Frittata with Feta
Ingredients
Equipment
Method
- Preheat the oven to 375°F (190°C). Lightly grease a 9-inch oven-safe skillet or 8×8-inch baking dish with cooking spray.
- Heat the olive oil in a skillet over medium heat. Add the red onion and bell pepper and cook for 4–5 minutes until softened.
- Stir in the tomatoes and cook for 2 minutes, then add the spinach and cook just until wilted and most of the moisture cooks off. Spread the vegetables evenly in the prepared pan or dish.
- In a mixing bowl, whisk together the egg whites, Greek yogurt, salt, black pepper, and garlic powder until smooth and slightly frothy.
- Pour the egg white mixture over the vegetables and tilt the pan gently so it spreads evenly. Sprinkle the crumbled feta over the top.
- Bake for 18–22 minutes, or until the edges are lightly golden and the center is just set and no longer jiggles.
- Let the frittata rest for 5 minutes. Garnish with chopped herbs if using, slice into wedges, and serve warm or at room temperature.
Nutrition
Notes
Tried this recipe?
Let us know how it was!Ingredients for a fluffy egg white frittata with feta
You don’t need anything fancy to make this feel special. Here’s what goes into the pan:
- Egg whites – Use 2 cups liquid egg whites (from a carton) or about 12 large whites. Carton whites keep things easy and help prevent waste.
- Greek yogurt – A small scoop of plain Greek yogurt adds body and richness so the frittata doesn’t taste flat or rubbery.
- Feta cheese – Crumbled feta brings tangy, salty flavor that pairs beautifully with egg whites and greens. Use block feta in brine if you can; it melts more pleasantly and tastes creamier.
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Veggies
- Red onion – a little sweetness and crunch.
- Red bell pepper – color and subtle sweetness.
- Cherry or grape tomatoes – juicy pops that keep each bite interesting.
- Baby spinach – classic frittata green, cooks down quickly and adds nutrients.
- Seasonings – Salt, black pepper, and garlic powder are all you truly need. Fresh parsley or dill on top makes everything taste extra bright.
- Olive oil + cooking spray – For sautéing the veggies and keeping the pan nonstick.
| Ingredient | Easy Swap |
|---|---|
| Liquid egg whites | 12 separated egg whites or 8 whole eggs for a richer frittata |
| Feta cheese | Goat cheese, reduced-fat feta, or shredded mozzarella |
| Baby spinach | Kale (finely chopped), Swiss chard, or arugula |
| Red bell pepper | Zucchini, mushrooms, or leftover roasted vegetables |
| Greek yogurt | Cottage cheese (blended) or a splash of milk |
Step-by-step: how to make egg white frittata with feta
1. Preheat and prep your pan
First, preheat your oven to 375°F (190°C). Lightly coat a 9-inch oven-safe skillet or an 8×8-inch baking dish with cooking spray. A nonstick skillet works best because egg whites love to stick if the surface isn’t well-greased.
While the oven heats, chop your red onion, bell pepper, and tomatoes, and rinse your spinach.
2. Sauté the vegetables
Set your skillet over medium heat and add 2 teaspoons olive oil. When it shimmers, add the red onion and bell pepper. Cook for 4–5 minutes, stirring often, until the veggies soften.
Next, stir in the cherry tomatoes and cook another 2 minutes. They should start to release some juice. Finally, add the spinach and cook just until it wilts and most of the moisture cooks off. This step helps prevent a watery egg white frittata with feta later.
Spread the veggies in an even layer across the bottom of the pan or baking dish.
3. Whisk the egg whites and yogurt
In a mixing bowl, combine:
- 2 cups liquid egg whites
- 1/4 cup plain Greek yogurt
- 1/2 teaspoon fine salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon garlic powder
Whisk just until everything looks smooth and slightly frothy. You don’t want to whip in tons of air; too much foam can cause the frittata to puff dramatically and then collapse.
4. Assemble with feta
Pour the egg white mixture evenly over the sautéed vegetables. Gently tilt the pan so the mixture spreads into all the nooks.
Sprinkle 1/2 cup crumbled feta over the top. Try to distribute it rather than leaving big clumps in one spot, so you get a little feta in every slice.
5. Bake until just set
Transfer the skillet or baking dish to the oven. Bake for 18–22 minutes, or until:
- The edges look slightly golden.
- The center no longer jiggles when you gently shake the pan.
- A toothpick inserted into the middle comes out mostly clean.
If you like a lightly browned top, you can place the frittata under the broiler for 1–2 minutes at the end. Just watch closely so the egg white frittata with feta doesn’t overcook and turn rubbery.
6. Rest, slice, and serve
Remove the pan from the oven and let it rest for 5 minutes. This rest time lets the proteins relax and makes slicing neater.
Scatter chopped fresh parsley or dill over the top. Slice into 4 wedges for main servings or 6 wedges for a brunch spread. Serve warm, at room temperature, or even chilled.
Variations, serving ideas, and make-ahead tips
Once you’ve made this base egg white frittata with feta, you can spin it a hundred ways.
Easy flavor variations
-
Mediterranean tray bake frittata
Swap the bell pepper for zucchini, add a few olives, and finish with extra herbs like oregano. Serve with a side of <a href=”https://healthyandrecipes.com/apple-feta-spinach-salad/”>apple feta spinach salad</a> for a fresh, feta-forward lunch that feels restaurant-level. -
Extra protein boost
Stir in a handful of chopped turkey sausage or diced chicken breast before baking. For snack-style portions, you can cut leftovers into cubes and enjoy them alongside <a href=”https://healthyandrecipes.com/high-protein-egg-white-bites/”>high protein egg white bites</a> during the week. -
Veggie clean-out frittata
Use this recipe as a canvas for leftover roasted veggies—broccoli, asparagus, or mushrooms all work well. A few spears of leftover <a href=”https://healthyandrecipes.com/parmesan-roasted-asparagus/”>Parmesan roasted asparagus</a> tucked on top taste amazing with feta.
What to serve with it
You can keep the rest of the meal simple:
- Toasted sourdough, whole-grain bread, or English muffins
- A bowl of berries or sliced citrus
- Crispy roasted potatoes or sweet potato wedges
For a full weekend spread, pair this lighter frittata with a slice of <a href=”https://healthyandrecipes.com/biscuits-and-gravy-breakfast-casserole/”>biscuits and gravy breakfast casserole</a> so everyone at the table gets both cozy comfort and a high-protein option.
If you’re craving something sweet on the side, a small square of <a href=”https://healthyandrecipes.com/milk-chocolate-mocha-blondies/”>milk chocolate mocha blondies</a> turns this into a brunch that feels special without a ton of extra work.
Make-ahead, storage, and reheating
- Fridge: Let the frittata cool completely, then store slices in an airtight container for 3–4 days. Similar egg white recipes hold well for several days when properly chilled.
- Reheat: Warm slices in a 300°F oven for about 10 minutes or microwave in 30-second bursts. Cover with a damp paper towel to keep the texture soft.
- Meal prep: Bake on Sunday, slice, and pack individual portions with greens or fruit. This egg white frittata with feta reheats nicely for busy mornings, just like other high-protein egg white breakfasts on your site.
Wrap-Up
This egg white frittata with feta proves you don’t need heavy ingredients to get a breakfast that feels special. You get plenty of protein, tons of veggies, and pockets of creamy, salty cheese in every bite. Whether you serve it hot from the oven for weekend brunch or slice it for grab-and-go meal prep, it’s the kind of recipe you’ll come back to on repeat. Save it, share it, and make your next pan of eggs this way—you’ll taste the difference.
FAQ’s
Can I use whole eggs instead of egg whites?
Yes. If you prefer whole eggs, use 8 large eggs in place of the egg whites. Whisk them with the yogurt and seasonings just like you would for the egg white version. The frittata will be richer and slightly higher in calories, but the method stays the same.
How do I keep my egg white frittata from getting watery?
Two things cause watery frittatas: wet vegetables and underbaked eggs. Sauté your veggies until most of their moisture cooks off, especially spinach and tomatoes. Then bake until the center is just set. Avoid covering the pan while it cools, because trapped steam can also add extra moisture.
Can I freeze egg white frittata with feta?
You can freeze it, but expect a slight change in texture. Let slices cool, wrap them tightly, and freeze for up to 2 months. Reheat directly from frozen in the oven. For the best texture, though, egg white frittatas shine when you store them in the fridge and eat them within a few days instead of freezing.
How long does egg white frittata last in the fridge?
Properly stored egg white frittata with feta keeps 3–4 days in the refrigerator. Cool it completely, then place slices in an airtight container. Reheat gently in the oven or microwave until warmed through, and don’t reheat more times than necessary to maintain quality and food safety.
