Spinach and Egg White Omelette with Feta Cheese and Sun-Dried Tomatoes

Name: Spinach and Egg White Omelette with Feta Cheese and Sun-Dried Tomatoes
Prep time: 7 min
Cook time: 8 min
Total time: 15 min
Yield: 1 serving
Ingredients: 5 large egg whites (from fresh eggs or carton egg whites both work well); 1 tablespoon water (helps the whites whisk up fluffier); 1 teaspoon olive oil (extra virgin, for cooking); 1.5 cups baby spinach (fresh, loosely packed); 1 small garlic clove (minced finely); 8 pieces sun-dried tomatoes (oil-packed, drained and roughly chopped); 30 grams reduced-fat feta cheese (crumbled, about 3 tablespoons); 2 tablespoons fresh chives (finely chopped); 0.25 teaspoon dried oregano; 1 pinch black pepper (freshly ground); 1 pinch sea salt (optional, feta already adds saltiness)

High ProteinKetoGluten-FreeNut-Free

Prep Time7 min

Cook Time8 min

Servings1

Calories218 kcal

Health Score6/10

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Spinach and Egg White Omelette with Feta Cheese and Sun-Dried Tomatoes

Some mornings call for something that genuinely fuels you without weighing you down. This spinach and egg white omelette with feta cheese is exactly that. It is light, satisfying and packed with clean protein that keeps you full well past breakfast. The combination of fluffy whipped egg whites, wilted baby spinach and creamy crumbled feta creates something that tastes indulgent but actually works hard for your body. Add in a handful of sun-dried tomatoes and fresh chives, and you have a breakfast that looks and tastes like it belongs on a cafe menu.

What makes this recipe stand out from a standard omelette is the technique with the egg whites. Whisking them until they form soft, airy peaks before cooking gives the omelette a soufflé-like texture that is genuinely different from what most people make at home. It is a small extra step that takes about 90 seconds and completely transforms the final result. The whites cook up cloud-soft rather than rubbery, which is the single biggest complaint people have about egg white cooking. Using a non-stick ceramic pan on medium-low heat also makes a huge difference, letting the omelette set slowly and evenly without browning too fast on the outside before the centre firms up.

On the nutrition side, this recipe delivers serious value. Each serving comes in at around 218 calories with 28 grams of protein, which is genuinely impressive for a single breakfast dish. Egg whites are one of the cleanest protein sources available, with virtually no fat or carbohydrate. Baby spinach adds iron, folate and a good hit of vitamin K without adding meaningful calories. The feta cheese brings healthy fats, calcium and that salty tangy flavour that ties everything together. Compared to a traditional whole-egg cheese omelette, this version cuts total fat by more than half while nearly matching the protein content. The sun-dried tomatoes add a small amount of natural sugar and a concentrated burst of lycopene, an antioxidant linked to heart health.

This omelette works brilliantly as a standalone breakfast, but you can easily build it out depending on your appetite and goals. Serve it alongside a slice of whole grain toast for extra fibre, or pair it with a small bowl of fresh fruit if you want something sweet to balance the savoury flavour. It is also a genuinely good post-workout meal given the protein density. The whole thing comes together in under 15 minutes, which means it fits into a busy weekday morning without any stress. Once you make it once you will find yourself coming back to it regularly, not because you feel like you should eat healthily, but because it genuinely tastes good.

Ingredients

Serves:1

5 large egg whites (from fresh eggs or carton egg whites both work well)
1 tablespoon water (helps the whites whisk up fluffier)
1 teaspoon olive oil (extra virgin, for cooking)
1.5 cups baby spinach (fresh, loosely packed)
1 small garlic clove (minced finely)
8 pieces sun-dried tomatoes (oil-packed, drained and roughly chopped)
30 grams reduced-fat feta cheese (crumbled, about 3 tablespoons)
2 tablespoons fresh chives (finely chopped)
0.3 teaspoon dried oregano
1 pinch black pepper (freshly ground)
1 pinch sea salt (optional, feta already adds saltiness)

Instructions

1
Place your egg whites and the tablespoon of water into a clean bowl. Whisk vigorously by hand for about 90 seconds, or use a hand mixer on medium speed for 45 seconds, until the whites are frothy and have soft, loose peaks. They should look opaque and airy, not stiff.
Make sure your bowl has no traces of fat or yolk. Even a tiny amount of fat prevents egg whites from whipping up properly.
2
Place a 20cm non-stick ceramic skillet over medium heat and add the olive oil. Once the oil is warm and shimmering, add the minced garlic and cook for 30 seconds, stirring constantly, until fragrant but not browned.
Keep the heat at medium rather than high. Burnt garlic turns bitter and will affect the whole omelette.
3
Add the baby spinach to the pan and toss gently with tongs. Cook for 1 to 2 minutes until the spinach is fully wilted and any excess moisture has evaporated. Transfer the spinach and garlic to a small plate and set aside. Wipe the pan quickly with a folded piece of kitchen paper.
Letting the moisture evaporate from the spinach before adding it to the omelette prevents a watery result.
4
Return the pan to medium-low heat and add a very light extra coating of cooking spray or a tiny drop more olive oil if needed. Pour the whipped egg whites into the pan and let them spread to fill the base. Sprinkle the dried oregano and a pinch of black pepper over the top.
Resist the urge to stir or move the egg whites. Let them set from the bottom up for a clean, structured omelette.
5
After about 2 minutes, when the edges are set but the centre still looks slightly glossy, scatter the wilted spinach and garlic evenly over one half of the omelette. Follow with the chopped sun-dried tomatoes and crumbled feta cheese.
6
Place a lid over the pan for 60 seconds to let the steam gently set the top of the egg whites without flipping. The surface should look matte and just firm when ready.
Using a lid instead of flipping keeps the omelette fluffy and prevents it from breaking.
7
Slide a thin spatula under the unfilled half of the omelette and fold it over the filled half to create a half-moon shape. Tilt the pan and slide the omelette gently onto your plate. Scatter the fresh chives over the top and serve immediately.
Serve straight away. Egg white omelettes are best eaten fresh, as they lose their fluffy texture within a few minutes of sitting.

Nutrition per serving

218kcal

Calories

28g

Protein

Carbs

Fat

Fibre

Sugar

480mg

Sodium

Pro Tips

✓
Use a non-stick ceramic pan for the best results. Stainless steel makes egg whites stick and tear.
✓
If using carton egg whites, shake the carton well before measuring. You need about 150ml for this recipe.
✓
Drain the sun-dried tomatoes really thoroughly. Excess oil can make the filling too wet and greasy.
✓
Reduced-fat feta works brilliantly here and keeps the calories and saturated fat lower without sacrificing much flavour.
✓
Fresh herbs make a real difference. Chives, flat-leaf parsley or fresh dill all work beautifully as a finishing garnish.
✓
Whipping the egg whites is the single best thing you can do for texture. Do not skip this step even if you are in a hurry.

Frequently Asked Questions

Can I use whole eggs instead of just egg whites?↓

Yes, you can swap 2 of the 5 egg whites for 1 whole egg if you want a richer flavour and a small boost of healthy fats. This will add roughly 50 calories and 5 grams of fat per serving but keeps the recipe very nutritious.

Is a spinach and egg white omelette with feta cheese good for weight loss?↓

It is a solid choice. At around 218 calories with 28 grams of protein, it is high in protein relative to its calorie content. High-protein breakfasts are well-documented to reduce hunger and help maintain a calorie deficit throughout the day.

Can I use frozen spinach instead of fresh?↓

You can, but thaw it first and then squeeze out as much water as possible using a clean cloth or paper towels. Frozen spinach holds a lot of moisture and will make the omelette watery if added wet.

Why do my egg whites turn rubbery when I cook them?↓

Rubbery egg whites usually come from cooking on too high a heat or for too long. Keep your heat at medium-low, cover the pan with a lid to set the top gently, and remove from the heat the moment the surface looks just set rather than fully dry.

What can I substitute for feta cheese to make it dairy-free?↓

A good dairy-free feta made from almond or cashew milk works well and melts similarly. Alternatively, a tablespoon of nutritional yeast adds a salty, cheesy flavour without any dairy.

How many egg whites equal one whole egg?↓

Roughly two large egg whites equal one whole large egg in terms of volume. In terms of protein, two large egg whites provide about 7 grams, which is similar to one whole egg, but without the fat and cholesterol found in the yolk.

Variations

•
Greek-Style Omelette
Add 5 pitted kalamata olives, sliced thinly, and a pinch of dried thyme alongside the feta. Finish with a squeeze of fresh lemon juice over the top just before serving.
•
Roasted Red Pepper and Feta
Replace the sun-dried tomatoes with 4 strips of jarred roasted red pepper, roughly chopped. It adds a sweeter flavour and a good hit of vitamin C.
•
Mushroom and Spinach Egg White Omelette
Sauté 60 grams of thinly sliced button mushrooms with the garlic before adding the spinach. Mushrooms add earthy depth, extra fibre and a small amount of vitamin D.
•
Spiced Harissa Version
Stir half a teaspoon of rose harissa paste into the egg whites before whisking. It adds gentle warmth and a beautiful pink tint to the omelette without significantly changing the nutrition.

Substitutions

•
Fresh egg whites → Carton egg whites (Use 150ml of liquid carton egg whites in place of 5 fresh large egg whites. The result is identical in taste and texture.)
•
Reduced-fat feta cheese → Goat cheese (Soft crumbled goat cheese melts slightly more than feta and has a creamier, milder flavour. It adds slightly more fat but also more creaminess.)
•
Baby spinach → Kale or Swiss chard (Both work well but need a slightly longer sauté time, around 3 minutes, to soften properly before adding to the omelette.)
•
Sun-dried tomatoes → Fresh cherry tomatoes (Halve 6 cherry tomatoes and add them to the filling raw. They add freshness but less concentrated flavour than sun-dried. Pat them dry first to reduce moisture.)
•
Olive oil → Avocado oil spray (A light coating of avocado oil spray reduces the added fat even further while still preventing sticking effectively.)

🧊 Storage

This omelette is best eaten fresh immediately after cooking. If you need to store leftovers, let it cool completely, then wrap tightly and refrigerate for up to 1 day. Reheat gently in a covered non-stick pan over low heat for 1 to 2 minutes. Note that the fluffy texture will not fully return after refrigeration.

📅 Make Ahead

You can pre-wilt the spinach with garlic and keep it in a small airtight container in the fridge for up to 2 days. You can also pre-chop the sun-dried tomatoes and crumble the feta in advance. When ready to cook, the assembly takes under 10 minutes.