Fluffy Egg White Omelette Recipe: High Protein 30g Breakfast in 12 Minutes
A fluffy, high-protein egg white omelette loaded with sauteed spinach, mushrooms, and feta cheese. Ready in 12 minutes, this low-fat breakfast delivers 30g of protein per serving with just 180 calories.
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Aug 17, 2026
Ingredients
Step-by-Step Method
Beat the Egg Whites
Crack 6 large eggs and separate the whites into a medium bowl. Add garlic powder, Italian seasoning, salt, and black pepper. Whisk firmly for about 60 seconds until the mixture turns slightly foamy with small bubbles at the surface. Do not over-whip to stiff peaks — you want liquid with just a little body. If you are using liquid egg whites from a carton, just pour and season directly.
Saute the Vegetables
Heat a 10-inch non-stick skillet over medium heat. Add olive oil and swirl to coat. Add sliced mushrooms and cook for 2 minutes, stirring once, until they release their moisture and start to brown at the edges — that browning is flavor. Add the spinach and cook for 30 more seconds until just wilted. Transfer vegetables to a plate and keep the pan on heat.
Cook the Omelette Base
Pour the seasoned egg whites into the hot skillet. Tilt the pan gently to spread the whites in an even layer. Drop the heat to medium-low. Cook for 2 to 3 minutes without stirring. The egg white omelette recipe works best when you let the base set undisturbed — the edges should look opaque and lift slightly from the pan while the center remains just barely glossy. Do not flip yet.
Add Filling and Fold
Spread the sauteed mushrooms, spinach, cherry tomatoes, and crumbled feta over one half of the omelette. Using a wide silicone spatula, carefully fold the empty half over the filling to form a half-moon. Press lightly with the spatula. Cook for 1 more minute so the feta warms through and the center finishes setting. The filling should be warm but the omelette should not feel dry when you press it.
Rest and Serve
Slide the omelette onto a plate. Let it rest for 60 seconds before cutting — skipping this step causes it to fall apart. Serve immediately with a slice of whole grain toast, or pair it with something like our Air Fryer Stuffed Bell Peppers for a fuller meal. For storage, wrap tightly and refrigerate up to 2 days; reheat in a pan on low heat, not the microwave.
Frequently Asked Questions
Can I use liquid egg whites from a carton instead of separating eggs?
Yes, just pour and season directly. There is no need to separate eggs yourself if you are using carton egg whites.
Why shouldn’t I over-whip the egg whites?
You want a little body, not stiff peaks. Over-whipping past that point changes the texture of the finished omelette.
How do I keep the omelette from falling apart when I fold it?
Let the base cook undisturbed until the edges look opaque and lift slightly from the pan before folding, and let it rest 60 seconds after cooking before cutting into it.
How long does this omelette keep in the fridge?
Wrap it tightly and refrigerate up to 2 days. Reheat gently in a pan on low heat rather than the microwave to avoid a rubbery texture.
