Healthy Egg White Muffins

35 min | easy | gluten-free, keto-friendly, Mediterranean diet, vegetarian

Three baked egg white muffins on a white rectangular plate, studded with spinach and red bell pepper and topped with crumbled feta; a few fresh spinach leaves and a white mug sit nearby.

Updated Jul 18, 2025

Prep Time	Cook Time	Total Time
15 min	20 min	35 min

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Introduction

These healthy egg white muffins are light, protein-packed little bites that still taste rich and satisfying.

They’re loaded with fresh spinach, sweet red bell pepper, and tangy feta, all tucked into an easy grab-and-go breakfast.

Make a batch on Sunday for a simple make-ahead option that reheats beautifully for busy mornings or post-workout snacks.

Three baked egg white muffins with spinach, red pepper, and crumbled feta on a white rectangular plate, with a cup of coffee blurred in the background.

How to Make Healthy Egg White Muffins

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Preheat oven and prep the muffin pan

Preheat your oven to 350°F and position a rack in the center.
Lightly grease a 12-cup muffin pan with cooking spray or brush with a thin layer of olive oil.
Saute the veggies

Heat the tablespoon of olive oil in a large nonstick skillet over high heat until just shimmering.
Add the chopped spinach and diced red bell pepper and saute for about one minute, stirring constantly.
Remove the skillet from the heat and let the veggies cool slightly while you mix the egg whites.

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Mix the egg white base

In a medium bowl, whisk together the liquid egg whites, skim milk, salt, black pepper, and garlic powder if using.
Whisk just until everything looks evenly combined and slightly frothy, but do not beat to stiff peaks.
Combine veggies, cheese, and egg mixture

Divide the sauteed spinach and peppers evenly among the muffin cups, using a spoon to spread them in each cup.
Sprinkle the crumbled feta cheese evenly over the veggies in each cup.
Pour the egg white mixture into a large measuring cup, then carefully fill each muffin cup almost to the top.
Bake the muffins

Place the muffin pan in the oven and bake for 18 to 22 minutes, until the tops look set.
The muffins are done when a toothpick inserted in the center comes out clean or with just a moist crumb.

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Cool, release, and serve

Let the muffins cool in the pan for five minutes so they can firm up and pull away from the sides.
Run a thin knife around each muffin if needed, then gently lift them out and serve warm or at room temperature.

Baked egg white muffins in a dark nonstick muffin tin, studded with spinach, red bell pepper, and crumbled feta; a few spinach leaves are scattered on the light wooden surface.

Substitutions

Liquid egg whites -> whites from 10 large eggs: Use the whites from about 10 large eggs in place of the 2 cups of liquid egg whites. Separate carefully so no yolk sneaks in, since even a little fat can change the muffins' light, fluffy texture. The flavor stays the same, but the muffins may bake a minute faster since fresh whites can whip slightly more.
Feta cheese -> crumbled goat cheese: Swap the feta for the same amount of soft crumbled goat cheese for a tangy, creamy twist. Goat cheese melts into little pockets, giving the muffins a richer feel while still staying fairly light.
Skim milk -> unsweetened almond milk: Use equal parts unsweetened almond milk if you need the muffins to be dairy free. The texture stays tender and the flavor remains mild, with just a hint of nutty background.

Five baked egg white muffins with spinach, red bell pepper, and crumbled feta on a long white rectangular platter.

Tips

Use a spouted measuring cup for easy pouring: Transfer the egg mixture to a large measuring cup so you can pour into the muffin cups without spills.
Chop veggies very small: Finely diced peppers and chopped spinach distribute more evenly, so every muffin bakes at the same rate.
Avoid rubbery egg whites: Pull the muffins from the oven as soon as the centers are set, since overbaking makes egg whites tough.
Grease the pan even if it is nonstick: A quick spray or brush of oil prevents sticking and also gives the muffin edges a nice gentle browning.
Make them ahead for busy mornings: Store cooled muffins in the fridge for up to four days, then reheat in the microwave or toaster oven.

Nutrition Facts ^*

Energy	45	kcal
Protein	6	g
Total Fat	2	g
Carbohydrates	1	g
Dietary Fiber	0	g

^* Approximate, per serving.
Data source: USDA FoodData Central.

FAQ

How can I keep the muffins from sticking to the pan?: Grease each cup very well, including the rim, and use a good quality nonstick muffin pan if possible. You can also use silicone baking cups, which release egg muffins very easily without extra fat.
Can I add other vegetables or meats?: Yes, just keep the total add-ins around one and a half cups so the muffins do not overflow. Cook wetter ingredients like mushrooms or turkey sausage first, so extra moisture does not make the muffins soggy.
Can I use whole eggs instead of only egg whites?: You can, but the recipe will no longer be low calorie and the texture will be richer and more custardy. Use about 10 large whole eggs, whisked, and expect the muffins to rise a bit higher.
Do these egg white muffins freeze well?: Yes, cool completely, then wrap each muffin and freeze in a ziptop bag for up to two months. Reheat from frozen in the microwave in short bursts until warmed through, so the texture stays tender.
Why are my muffins watery at the bottom?: The veggies may have released too much moisture, or the muffins might be slightly underbaked. Make sure to saute the spinach and peppers over high heat and bake until the centers are fully set.

Serving Suggestions

These healthy egg white muffins make a great grab-and-go breakfast with fresh fruit or a small yogurt on the side.

For extra flavor, top warm muffins with salsa, hot sauce, or a spoonful of pesto for different mornings.

They also pack nicely in lunch boxes with a crunchy salad or whole grain toast for a light meal.

Recipe by Eunice.
“I learned to cook by standing in my grandma’s kitchen, watching her turn simple ingredients into meals that fed our entire family. That’s where it started. Today, I create recipes for real life, real kitchens, and anyone who wants good food without overthinking it.” Read more.

Reviews

Flora Murray, Vancouver: We LOVE these and make them alot! I even do a batch on Sunday to have ready for quick breakfasts. A couple of things, I use a splash of almond milk instead of the skim milk and instead of feta I use a little shredded cheddar or whatever we have on hand. It just adds a little more flavor that we enjoy! — 5 ★

Eunice: So glad they work with almond milk and cheddar, Flora!