This Egg White Frittata is a simple, protein-rich breakfast made with fluffy egg whites, spinach, bell pepper, green onions, and a little cheese. It is light enough for a weekday breakfast but flavorful enough that it never feels like diet food. The vegetables add sweetness, color, and texture, while a small amount of cheese gives the frittata a savory finish. The best part is that everything comes together in one oven-safe skillet, making this an easy option when you want a filling meal without a lot of cleanup.
What Is an Egg White Frittata?
A frittata is an Italian-style egg dish that is cooked gently in a skillet and finished until the eggs are set. Unlike an omelet, there is no folding or complicated flipping involved. This version uses egg whites instead of whole eggs, along with plenty of vegetables and a modest amount of cheese. Egg whites provide protein without adding much fat, while spinach and bell pepper make the dish more substantial and flavorful.
Ingredients
| Ingredient | Amount |
|---|---|
| Egg whites | 1 cup, or whites from about 8 large eggs |
| Unsalted butter or cooking oil | 1 tablespoon |
| Red bell pepper | 1, diced |
| Fresh spinach | 1½ cups, roughly chopped |
| Green onions | 2, finely chopped |
| Italian seasoning | ½ teaspoon |
| Kosher salt | ¼ teaspoon |
| Cheddar, feta, or Parmesan | 2 tablespoons, shredded or crumbled |
| Hot sauce | Optional, for serving |
| Avocado | Optional, sliced for serving |
Also Read: Crunchy Crumbed Chicken Drumsticks
How to Make Egg White Frittata
1. Prepare the Oven
Place an oven rack in the upper part of the oven and preheat the broiler. You will need an oven-safe nonstick skillet for the final cooking step.
2. Cook the Bell Pepper
Heat the butter or oil in an 8-inch nonstick oven-safe skillet over medium heat. Add the diced bell pepper and cook for about 6 to 8 minutes, stirring occasionally, until it softens.
3. Whisk the Egg Whites
While the pepper cooks, place the egg whites in a bowl and whisk them until lightly frothy. You do not need to beat them until stiff; just getting a little air into the whites helps keep the finished frittata lighter.
4. Add the Seasoning and Vegetables
Add the green onions, Italian seasoning, and salt to the skillet. Stir and cook for about 30 seconds. Add the spinach in handfuls, stirring until it wilts down. This should only take a minute or two.
5. Add the Egg Whites
Slowly pour the egg whites into the skillet. Let them cook without stirring until the edges begin to set. Using a rubber spatula, gently lift the cooked edges and tilt the skillet slightly so the uncooked egg whites can flow underneath. Continue around the skillet and cook for another minute.
6. Add Cheese and Finish Under the Broiler
Sprinkle the cheese evenly over the top. Carefully transfer the skillet under the broiler and cook for about 2 to 3 minutes, watching closely. The frittata should puff up and the egg whites should be completely set.
7. Slice and Serve
Remove the skillet from the oven and let the frittata settle for a minute or two. Slide it onto a plate or cutting board, cut into wedges, and serve warm. Hot sauce, avocado, or a few fresh herbs make easy finishing touches.
Also Read: Mozzarella Stuffed Chicken Breast
What You Can Do Better
- Use a nonstick skillet: Egg whites tend to stick more easily than whole eggs, so a good nonstick pan makes a noticeable difference.
- Do not overcook it: Egg whites can become rubbery when left on high heat for too long. Cook just until the center is set.
- Season the vegetables: Since egg whites have a mild flavor, the seasoning and vegetables do most of the work. A little Italian seasoning, salt, and green onion can make the whole dish taste much better.
- Do not skip the vegetables: Spinach and bell pepper add moisture, texture, color, and flavor while making the frittata more filling.
- Choose a flavorful cheese: You only need a small amount. Sharp cheddar, feta, or Parmesan can add plenty of flavor without covering the vegetables.
- Watch the broiler carefully: The final step happens quickly. Stay nearby so the top does not burn before the eggs finish cooking.
Easy Variations
One of the nicest things about a frittata is how easily you can change it. Replace the bell pepper with mushrooms, zucchini, broccoli, or another vegetable you already have in the refrigerator. Spinach pairs especially well with feta, while broccoli and cheddar make a more comforting combination. You can also add cooked turkey sausage, chicken, or bacon if you want a heartier meal. For a dairy-free version, simply leave out the cheese or use a dairy-free alternative.
Also Read: New Orleans Chicken Wings
What to Serve With Egg White Frittata
This frittata works well on its own, but a few simple sides can turn it into a complete breakfast or lunch. Serve it with whole-grain toast, fresh fruit, a simple green salad, roasted potatoes, or avocado. A spoonful of salsa or a few drops of hot sauce are also great if you like a little heat.
How to Store
Let leftover frittata cool before placing it in an airtight container and refrigerating it. It is best eaten within about 3 days. Reheat individual portions gently in the microwave or warm the frittata in a baking dish in a 350°F oven until heated through.
For longer storage, the cooked frittata can also be frozen in an airtight freezer-safe container. Thaw it overnight in the refrigerator before reheating.
Also Read: One-pan Baked Butter Chicken
Egg White Frittata Nutrition
The following nutrition information is an estimate based on two servings and the ingredients listed above. Actual values can vary depending on the cheese, butter or oil, and exact vegetables used.
| Nutrient | Per Serving |
|---|---|
| Calories | 176 kcal |
| Carbohydrates | 7 g |
| Protein | 17 g |
| Total Fat | 9 g |
| Saturated Fat | 5 g |
| Cholesterol | 24 mg |
| Fiber | 2 g |
| Sugar | 4 g |
| Potassium | 482 mg |
| Calcium | 109 mg |
| Iron | 1 mg |
| Vitamin C | 85 mg |
Also Read: Stuffed Chicken Breast Recipe
Frequently Asked Questions
Can I make this frittata without cheese?
Yes. The cheese is mainly there for extra flavor, so you can leave it out. Add a little extra seasoning, fresh herbs, or hot sauce to keep the frittata flavorful.
Can I use whole eggs instead of egg whites?
Yes. Whole eggs will give the frittata a richer flavor and a slightly different texture. You can also use a mixture of whole eggs and egg whites.
Why does my egg white frittata become rubbery?
The most common reason is overcooking. Egg whites become firm quickly, especially over high heat. Cook the frittata gently on the stovetop and watch it closely during the broiling step.
Can I use frozen spinach?
Yes, but thaw it first and squeeze out as much excess water as possible. Too much moisture can make the frittata watery.
Can I make this ahead of time?
Yes. Cook the frittata, let it cool, and refrigerate it in an airtight container. It can be reheated gently when you are ready to eat.


