
These savory egg muffin cups have transformed my busy mornings from chaotic to calm. The vibrant combination of spinach, tangy feta, and sweet sun-dried tomatoes creates perfect portable protein bites that solve the eternal question of "what's for breakfast?" without sacrificing flavor or nutrition.
I created these during a particularly hectic week when I needed quick protein options that wouldn't leave me reaching for a mid-morning snack. My family now expects a fresh batch every Sunday evening for the week ahead.
Ingredients
- 4 eggs: The foundation of these muffins providing structure and protein
- 3/4 cup egg whites: Keeps the muffins lighter while boosting protein content
- 1/2 cup sun dried tomatoes: Adds concentrated sweet tanginess and beautiful color
- 2 cups chopped spinach: Sneaks in nutrition and pairs perfectly with the feta
- 1/4 cup crumbled feta cheese: Provides salty brininess that complements the tomatoes
- 1 teaspoon Italian seasoning: A perfect herb blend that ties all flavors together
- Salt and pepper to taste: Always adjust seasonings to your preference
- Cooking spray: Essential for easy removal of the egg cups
Step-by-Step Instructions
- Preheat and Prepare:
- Heat your oven to 375°F. This moderate temperature ensures the eggs cook evenly without browning too quickly. Thoroughly coat a 12 cup muffin pan with cooking spray, making sure to get the sides well. If you have silicone muffin cups, they work beautifully here.
- Mix the Base:
- In a medium bowl, thoroughly whisk together eggs and egg whites until completely combined. Add the chopped spinach, Italian seasoning, salt and pepper. The spinach may seem like a lot but will wilt down considerably during baking. Make sure your spinach is well chopped for even distribution.
- Fill Muffin Cups:
- Carefully pour the egg mixture into your prepared muffin cups, filling each about 3/4 full. The eggs will puff up during baking but will settle as they cool. Using a measuring cup with a spout makes this process much neater.
- Add the Star Ingredients:
- Evenly distribute the chopped sun dried tomatoes and crumbled feta cheese across the tops of each muffin cup. Slightly press them into the egg mixture but not all the way to the bottom. This creates beautiful pops of color and flavor in every bite.
- Bake to Perfection:
- Place in your preheated oven and bake for 15 to 18 minutes. You'll know they're done when the centers are set and no longer jiggly. They should rise beautifully and have a slight golden color on top.
- Cool and Release:
- Allow the muffins to cool in the pan for 5 minutes. This cooling period is crucial as it helps them set and makes removal easier. Run a small spatula or butter knife around the edges of each muffin to loosen. Gently lift each egg cup out and place on a cooling rack.

The sun dried tomatoes are truly the secret ingredient in this recipe. I discovered their magic during a cooking class in Tuscany, where our instructor insisted they bring "concentrated sunshine" to any dish. That description perfectly captures what they add to these humble egg cups.
Meal Prep Magic
These egg muffins are the ultimate meal prep champion. I make a double batch every Sunday, refrigerate half for the week ahead, and freeze the rest for the following week. To reheat from refrigerated, 20 seconds in the microwave brings them back to perfection. From frozen, wrap in a paper towel and microwave for 60 seconds, then an additional 15 second intervals until heated through.
Endless Variations
The beauty of this recipe framework lies in its adaptability. Swap spinach for kale or arugula. Replace feta with goat cheese or cheddar. Try roasted red peppers instead of sun dried tomatoes. Add herbs like basil or dill for brightness. For meat lovers, cooked bacon bits or diced ham work beautifully. Just maintain the same egg to add-in ratio for consistent results.
Serving Suggestions
While perfect on their own, these egg muffins elevate a simple breakfast into something special when paired thoughtfully. Serve alongside avocado slices for healthy fats, a side of berries for sweetness, or toasted whole grain bread for those wanting carbs. For brunch, arrange on a platter with a simple arugula salad dressed with lemon vinaigrette. They also make excellent protein additions to lunch boxes for children and adults alike.
Common Queries
- → How long do these egg muffin cups stay fresh?
These egg muffin cups will stay fresh in an airtight container in the refrigerator for up to 4 days. They can be eaten cold or reheated in the microwave for 20-30 seconds.
- → Can I freeze these egg muffin cups?
Yes! Let them cool completely, then place in a freezer-safe container or zip-top bag. Freeze for up to 2 months. Thaw overnight in the refrigerator and reheat in the microwave for 30-45 seconds.
- → What can I substitute for feta cheese?
Goat cheese, crumbled cotija, or shredded mozzarella all work well as substitutes for feta. For a dairy-free option, you can omit the cheese entirely or use a plant-based cheese alternative.
- → Can I add other vegetables to this recipe?
Absolutely! Bell peppers, onions, mushrooms, or zucchini make excellent additions. Just make sure to sauté vegetables with high water content first to prevent the egg cups from becoming watery.
- → How can I make these egg muffin cups spicy?
Add a pinch of red pepper flakes, diced jalapeños, or a dash of hot sauce to the egg mixture before baking. You could also top with sriracha before serving for extra heat.
- → Are these egg muffin cups keto-friendly?
Yes, these egg muffin cups are naturally low in carbohydrates and high in protein and healthy fats, making them suitable for a ketogenic diet.