The Ultimate 5-Ingredient Egg White Frittata for Meal Prep

Finding a breakfast that is both high in protein and easy to prepare can be a challenge, but this 5-ingredient egg white frittata changes the game. With only 181 calories per serving and a massive 23g of protein, it is the perfect solution for anyone looking to stay full until lunch while hitting their fitness goals.

Whether you are trying to clear out your vegetable drawer or looking for a reliable "grab-and-go" morning meal, this recipe is a versatile staple for any healthy kitchen.

Why You’ll Love This High-Protein Recipe

• Muscle-Building Fuel: Packed with clean protein from egg whites to support your fitness journey.
• Minimal Ingredients: You only need five main staples plus basic pantry seasonings.
• Meal Prep Friendly: This dish stays fresh in the fridge for up to five days and even stands up well to freezing.
• Zero Waste: It is the perfect vessel for using up any lingering vegetables in your refrigerator.

Ingredients and Smart Substitutions

• Olive Oil or Butter: Used for sautéing and greasing the pan. You can also use avocado oil or coconut oil.
• Carton Egg Whites: For convenience, use a 500mL carton. If using fresh eggs, you will need approximately 16 large egg whites to reach the required 2 cups.
• Cherry Tomatoes: These add bursts of acidity. Feel free to swap with sun-dried tomatoes or roasted red peppers.
• Red Onion: Provides a sharp, savory depth. Green onions or shallots work beautifully as well.
• Baby Spinach: A great way to get your greens in early. You can substitute with kale, swiss chard, or arugula.
• Salt & Pepper: To season to perfection.

How to Make an Egg White Frittata

Step 1: Prep Your Oven and Dish

Preheat your oven to 400°F (200°C). Thoroughly grease a 9-inch round baking dish or cake pan. Ensure the oven is fully up to temperature before the frittata goes in to ensure even rising.

Step 2: Combine the Ingredients

Chop your spinach and slice the cherry tomatoes and red onions. Place all the vegetables directly into the greased baking dish and pour the carton of egg whites over the top. Add your salt, pepper, and any optional dried herbs.

Step 3: The Baking Process

Place the baking dish on top of a parchment-lined baking sheet. This acts as a safety net in case the egg whites rise over the edges or oil bubbles up. Bake for 30–35 minutes. You will know it is done when the center is firm to the touch and the edges are slightly golden.

Step 4: Cool and Slice

Allow the frittata to cool for at least 5–10 minutes before slicing. This allows the protein structure to set, making it much easier to cut into clean wedges.

Customization and Flavor Variations

One of the best things about a frittata is how easily it adapts to your cravings:

• Add Dairy: Fold in 1/2 cup of feta, goat cheese, or sharp cheddar for extra creaminess.
• Include Meat: Stir in cooked turkey sausage, chopped ham, or crispy bacon bits for a heartier meal.
• Whole Egg Version: If you prefer whole eggs, swap the carton of whites for 6–7 large whole eggs, whisked thoroughly.
• Creamy Texture: Blend 1/2 cup of cottage cheese into the egg whites before pouring them into the pan for a "Starbucks egg bite" style texture.

Storing and Reheating Instructions

In the Refrigerator

Store individual slices in airtight glass containers. They will stay fresh and delicious for 3 to 4 days.

In the Freezer

This frittata freezes surprisingly well. Wrap individual slices in parchment paper and place them in a freezer-safe bag. They will last for up to 3 months. Thaw overnight in the fridge before reheating.

How to Reheat

• Microwave: Heat on high for 1–2 minutes.
• Oven: If reheating a large portion, cover with foil and bake at 300°F for 15 minutes to maintain the moisture.

Serving Suggestions

While this frittata is a complete meal on its own, you can elevate your breakfast by serving it with:

1. Grains: A toasted slice of sourdough or a whole-wheat English muffin.
2. Freshness: A side of sliced avocado or a simple arugula salad with lemon vinaigrette.
3. Fruit: A small bowl of mixed berries or a Greek yogurt parfait.
4. Heat: A drizzle of sriracha or your favorite hot sauce.