Spinach feta egg white muffins, 80 kcal each, meal-prep friendly
Six high-protein egg white muffins with spinach and feta. 80 kcal and 9g protein each. The meal prep that actually reheats well.
- 1
Heat the oven to 180C / 355F. Brush a 6-cup muffin tin with the olive oil, every cup, including the top rim, or the muffins will stick.
- 2
Heat a dry skillet over medium heat. Add the chopped spinach with no oil. Stir for 60 to 90 seconds until just wilted, then transfer to a plate to cool. Squeeze out any liquid with a paper towel.
- 3
In a large bowl, whisk the egg whites and whole eggs with the salt, pepper, oregano, and grated garlic until completely smooth, about 30 seconds.
- 4
Stir in the cooled spinach, diced red onion, and crumbled feta. Do not over-mix; the feta should stay in lumps.
- 5
Divide the mixture evenly between the 6 muffin cups. They should be filled about 90% to the top.
- 6
Bake for 20 to 22 minutes, until the tops are set, lightly golden, and a toothpick comes out clean.
- 7
Cool in the tin for 5 minutes, then run a knife around each muffin and lift out. Cool fully on a rack before storing.
Egg white muffins are the meal prep that survives a Tuesday morning. Six muffins, 30 minutes of total work on Sunday, and breakfast solved for the rest of the week. 80 kcal each, 9g of protein, almost no carbs. Two muffins is a real breakfast.
This is the version that holds up after 5 days in the fridge, and after a microwave reheat, without going rubbery.
Why egg whites instead of all whole eggs
Whole eggs are a great food. They are also calorie-dense (about 75 kcal each) and the yolk is most of the calories. For a portable meal-prep breakfast, swapping most yolks for whites lets you double the protein without doubling the calories.
The two whole eggs in this recipe stay because the yolk does two real jobs: it carries fat-soluble vitamins (especially A and D), and it gives the muffins a softer texture. Pure egg white muffins are spongy in a way that announces "I am dieting." Two yolks across six muffins fixes that.
For where eggs fit in the broader breakfast protein ranking, eggs calories breakdown puts the yolk-vs-white math in context.
The macros that matter
| Per muffin | Amount |
|---|---|
| Calories | 80 |
| Protein | 9g |
| Carbs | 2g |
| Fat | 4g |
| Fiber | 1g |
Two muffins is 160 kcal and 18g of protein. That is more protein per calorie than almost any other portable breakfast (better than overnight oats, on par with Greek yogurt). For a fuller picture, seven protein-first breakfast swaps covers the broader replacement logic.
Storage and reheating
- Fridge. 5 days in an airtight container. They keep their shape better if stored in a single layer with a paper towel underneath to absorb any condensation.
- Freezer. Up to 2 months. Wrap each muffin in cling film and bag them flat. Thaw overnight in the fridge or microwave from frozen for 90 seconds.
- Reheat. 30 to 40 seconds in the microwave covered with a paper towel. The towel matters; uncovered, the surface goes leathery.
A common trap is reheating cold. Cold egg muffins from the fridge are dense and the texture is wrong. Always warm.
Swaps and add-ons
- Sun-dried tomato and basil. Replace the spinach with 50g chopped sun-dried tomatoes and a handful of basil. Adds 20 kcal per muffin, lifts the savory hit.
- Mushroom and gruyere. Replace spinach with 100g sauteed sliced mushrooms; replace feta with 60g shredded gruyere. Lands at 95 kcal, 9g protein per muffin.
- Smoked salmon and dill. Skip the spinach and feta. Add 60g chopped smoked salmon and 1 tbsp fresh dill across the batch. Lands at 90 kcal, 11g protein.
- More protein. Add 100g cooked chicken breast (diced small) or 60g cooked ham. Adds 20 kcal and 4g protein per muffin.
- No feta. Replace with 80g 0% Greek yogurt stirred into the egg mixture. Drops 1g fat, adds 1g protein per muffin.
What not to do
- Do not skip greasing the muffin tin. Egg whites stick to bare metal. Even non-stick tins need a thin oil coating, especially around the rim.
- Do not use raw spinach without wilting. It releases water in the oven and the muffins collapse. Sixty seconds in a dry pan is enough.
- Do not overfill the cups. 90% full is the right line. They puff in the oven and overflow if you go higher.
- Do not bake at higher heat to save time. Above 190C the egg whites dry out and turn rubbery. 180C / 355F is the sweet spot.
- Do not skip the salt. Egg whites are bland without it. The feta is salty, but the egg base needs its own seasoning.
Two muffins, real macros, no microwave breakfast bar
Most "high protein breakfast bars" are 200 to 250 kcal with 10 to 15g of protein, plus 8 to 12g of added sugar. Two of these muffins beat them on every macro and cost less than half per serving.
For the lunch protein equivalent (different format, same logic), Mediterranean tuna salad bowl is the same Mediterranean flavor profile in a heavier meal.