Egg white muffins are light, savory breakfast cups made with liquid egg whites, vegetables, cottage cheese, and feta. For tender muffins, cook and drain the vegetables first, grease the pan thoroughly, and bake at 350°F until the centers are just set.
This egg white muffin recipe makes 12 protein-rich muffins that are easy to refrigerate, freeze, and reheat for busy mornings.
Why Does This Egg White Muffin Recipe Work?

Blended cottage cheese gives egg white muffins a softer texture and prevents them from becoming dry or rubbery. Spinach, bell pepper, scallions, and feta add flavor without requiring heavy sauces or large amounts of fat.
The most important step is controlling moisture. Vegetables such as spinach, mushrooms, tomatoes, and courgette release water while baking. Cooking and draining them first keeps the muffins firm instead of soggy.
Best Egg White Muffin Ratio

For a standard 12-cup muffin pan, use:
- 2 cups liquid egg whites
- ½ cup blended cottage cheese
- No more than 2 cups cooked fillings
- Approximately 2 tablespoons filling per muffin cup
Fill each cup only three-quarters full so the mixture can rise without overflowing.
Which Ingredients Do You Need?

Egg whites
Use two cups of liquid egg whites, equal to approximately 16 large egg whites. Freshly separated whites and refrigerated carton egg whites both work.
Cottage cheese
Blended cottage cheese improves the texture and adds extra protein. Reduced-fat or full-fat cottage cheese can be used.
Vegetables
This recipe uses spinach, red bell pepper, and scallions. Cook the spinach and pepper briefly, then drain any visible liquid before adding them to the pan.
Feta cheese
Feta adds a salty, tangy flavor. Cheddar, mozzarella, goat cheese, or Parmesan can also be used.
How Do You Make Egg White Muffins?

Preheat the oven to 350°F or 175°C. Coat a standard 12-cup muffin pan generously with nonstick spray.
Heat the olive oil in a skillet. Cook the bell pepper for two minutes, then add the spinach and cook until just wilted. Transfer the vegetables to a plate and allow them to cool.
Blend the cottage cheese until smooth. Whisk it with the egg whites, garlic powder, salt, and black pepper.
Divide the cooked vegetables, scallions, and feta between the muffin cups. Pour the egg mixture over the fillings until each cup is three-quarters full.
Bake for 20–24 minutes, or until the centers are set and no longer look wet. Let the muffins rest for five minutes before removing them.
How Do You Stop Egg White Muffins From Sticking?

Egg whites contain very little fat, so they can stick easily to an untreated metal pan.
For easier removal:
- Grease the bottom and sides of every cup.
- Use a silicone muffin pan or silicone liners.
- Let the muffins rest for five minutes after baking.
- Loosen the edges with a thin silicone spatula.
Paper liners are not ideal because cooked egg whites can stick firmly to the paper.
How Do You Prevent Watery or Rubbery Muffins?

Watery muffins usually contain too many raw or poorly drained vegetables. Cook spinach, mushrooms, courgette, tomatoes, and frozen vegetables before using them.
Squeeze thawed spinach dry, remove tomato seeds, and cook mushrooms until their released liquid evaporates.
Rubbery muffins are normally caused by overbaking or reheating for too long. Remove them from the oven as soon as the centers are set.
Avoid these common mistakes:
- Adding wet raw vegetables
- Filling the cups to the top
- Using oversized vegetable pieces
- Baking at excessive heat
- Reheating for several minutes at once
The muffins will puff in the oven and settle slightly as they cool. This is normal.
Can You Use Carton Egg Whites?

Yes. Pasteurized carton egg whites work well and make the recipe faster.
Choose a carton containing egg whites rather than a heavily processed egg substitute. Shake the carton before measuring and follow the storage instructions after opening.
Measure the egg whites by volume because package serving sizes can vary between brands.
Which Egg White Muffin Variations Work Best?

Keep the total quantity of fillings similar so the muffins bake evenly.
Spinach and feta
Combine cooked spinach, feta, scallions, and dried oregano.
Broccoli and cheddar
Use finely chopped cooked broccoli with shredded cheddar.
Mushroom and Swiss
Cook chopped mushrooms until dry, then add Swiss cheese and thyme.
Turkey sausage and pepper
Use fully cooked lean turkey sausage, diced bell pepper, and cheddar.
Tomato and basil
Use seeded, drained tomatoes with mozzarella and fresh basil.
Dairy-free
Leave out the cottage cheese and feta. Add two tablespoons of unsweetened plant milk. The muffins will be slightly firmer.
How Should You Store and Reheat Egg White Muffins?

Let the muffins cool before placing them in an airtight container. Add a paper towel underneath to absorb condensation.
Refrigerate them for up to four days. Reheat one or two muffins in the microwave for 20–30 seconds, adding more time only when needed.
For oven reheating, cover and warm them at 325°F or 165°C for approximately eight minutes.
To freeze them, place the cooled muffins on a tray until firm, then transfer them to a freezer-safe container. Thaw overnight in the refrigerator or reheat from frozen in short microwave intervals.
Egg White Muffin Recipe Card

Preparation time: 15 minutes
Cooking time: 20–24 minutes
Total time: About 40 minutes
Yield: 12 muffins
Serving size: 3 muffins
Ingredients
- Nonstick cooking spray
- 1 teaspoon olive oil
- ½ cup finely diced red bell pepper
- 1 packed cup chopped baby spinach
- 2 cups liquid egg whites
- ½ cup cottage cheese
- ½ teaspoon garlic powder
- ¼ teaspoon black pepper
- ¼ teaspoon salt
- ⅓ cup sliced scallions
- ½ cup crumbled feta
Instructions
- Preheat the oven to 350°F or 175°C.
- Thoroughly grease a standard 12-cup muffin pan.
- Heat the oil in a skillet and cook the bell pepper for two minutes.
- Add the spinach and cook until wilted.
- Cool the vegetables and drain away any liquid.
- Blend the cottage cheese until smooth.
- Whisk together the egg whites, cottage cheese, garlic powder, pepper, and salt.
- Divide the vegetables, scallions, and feta between the muffin cups.
- Pour in the egg mixture until each cup is three-quarters full.
- Bake for 20–24 minutes or until the centers are set.
- Rest for five minutes before removing the muffins.
Estimated Nutrition
One muffin contains approximately:
- 50 calories
- 6 grams protein
- 2 grams carbohydrates
- 2 grams fat
Nutrition varies according to the products and fillings used
Frequently Asked Questions
How many egg whites equal two cups?
Two cups are approximately equal to the whites from 16 large eggs. Measuring by volume is more accurate because egg sizes vary.
Are egg white muffins healthy?
They provide protein and can include several vegetables. Their final nutritional value depends on the cheese, meat, and other fillings used.
Why did my egg white muffins collapse?
Egg whites expand while baking and contract as steam escapes. Slight settling is normal, but excess liquid and underbaking can cause greater collapse.
Can you make them without cottage cheese?
Yes. Replace it with two tablespoons of milk or unsweetened plant milk. The muffins will be slightly firmer.
Can frozen vegetables be used?
Yes, but thaw, cook, and drain them thoroughly before adding them to the muffin cups.
Can you prepare the mixture overnight?
Prepare the vegetables and egg mixture separately. Refrigerate them in covered containers and assemble the muffins before baking.
Can egg white muffins be frozen?
Yes. Freeze them individually before transferring them to a sealed container so they do not stick together.
Why are my egg muffins spongy?
Overbaking, overheating during reheating, or using too few fillings can create a spongy texture.