High-Protein Spinach Feta Egg Muffins
Eight eggs, a handful of spinach, and a little crumbled feta turn into a dozen protein-packed breakfast muffins that cost just pennies each. These spinach feta egg muffins solve the busiest problem in your week: a real breakfast when you have zero time. You bake one tray on Sunday and eat grab-and-go protein all week long.
The ingredients stay cheap on purpose. Eggs are one of the most affordable proteins you can buy, and a little feta and Greek yogurt stretch a long way across twelve muffins. Frozen or fresh, spinach costs next to nothing and packs in iron, folate, and vitamin K.
Each muffin lands around 6 grams of protein with barely any carbs, so you get a filling, low-carb start that keeps you full until lunch. It is the Mediterranean flavor of a Greek spanakopita, baked into a portable cup.
Why You’ll Love This Recipe
- High protein, low carb: Around 6g of protein per muffin and only 1 to 2g of carbs, so they keep hunger quiet for hours.
- Budget-friendly: Eggs, spinach, and onion do the heavy lifting, while a small amount of feta and yogurt adds richness without raising the cost.
- Meal-prep hero: Bake once, eat all week. They reheat in 20 seconds and travel well.
- Naturally Mediterranean: Spinach, feta, and a whisper of nutmeg give you that classic spanakopita taste with no fussy pastry.
Fabian’s Budget & Health Tip: Buy a bag of frozen chopped spinach instead of fresh. It is cheaper, lasts for months, and works perfectly here. Just thaw it and squeeze out the water hard with your hands or a clean towel before stirring it in. Skipping that squeeze is the number one reason egg muffins turn watery, so do not rush it.
Ingredients (Makes 12 Muffins)
- 8 large eggs
- 1/4 cup (60g) plain Greek yogurt
- 1 1/2 cups (45g) chopped spinach
- 3/4 cup (about 3 oz / 85g) crumbled feta
- 1/4 cup (40g) diced onion
- 1/2 tsp salt
- 1/4 tsp black pepper
- A pinch of ground nutmeg
- Oil, for greasing the tin
Step-by-Step Instructions
Step 1: Heat the Oven and Prep the Tin 🔥
Preheat your oven to 350°F (175°C). Grease a 12-cup muffin tin generously. Brush oil right up the sides of each cup so it shines, because a well-greased tin is what lets the muffins lift out clean. Set it aside.
Step 2: Whisk the Egg Base 🥚
Crack all 8 eggs into a large bowl. Add the Greek yogurt, salt, pepper, and that pinch of nutmeg. Whisk hard for a full 30 seconds until the mixture turns pale yellow and a little foamy on top. You want it smooth and uniform, with no streaks of clear egg white left behind.
Step 3: Fold in the Good Stuff 🥬
Tip in the chopped spinach, crumbled feta, and diced onion. Stir gently until everything is spread evenly through the eggs. The mix should look speckled green and white, with feta crumbles floating throughout. Give it a quick smell here: fresh, savory, and a little sharp from the cheese.
Step 4: Fill the Cups ⚖️
Spoon or pour the mixture evenly into the 12 cups, filling each about three-quarters full. Try to share the feta and spinach fairly between cups so no muffin gets shortchanged. A small ladle or measuring cup makes this fast and clean.
Step 5: Bake Until Puffed and Set ⏲️
Slide the tin into the oven and bake for 18 to 20 minutes. Watch for the moment the tops puff up like little soufflés and turn golden at the edges. The centers should look just set, not wet or jiggly. Your kitchen will smell warm, eggy, and savory, with that salty feta aroma signaling they are done.
Step 6: Cool, Then Lift 🧁
Pull the tin out and let it rest for 5 minutes. The muffins will deflate slightly, and that is normal. Run a thin knife or small spatula around each edge, then lift them out. Serve warm, or cool completely and store for the week ahead.
Expert Troubleshooting & FAQs
Why did my egg muffins turn out watery?
Almost always, it comes down to wet spinach. Fresh spinach releases water as it bakes, and frozen spinach holds even more. Squeeze it dry before folding it in. Draining the onion of any excess moisture helps too.
Why did my muffins stick to the tin?
The tin was not greased enough, or it cooled too long. Egg sets fast and grips bare metal. Brush oil up the full side of every cup, and lift the muffins out within 5 to 10 minutes while they are still warm. A silicone muffin tray also releases them easily.
How do I store and reheat them?
Keep them in an airtight container in the fridge for up to 4 days, or freeze for up to 2 months. Reheat a chilled muffin in the microwave for 20 to 30 seconds, or warm a frozen one for about 1 minute. They taste great cold straight from the fridge as well.
Estimated Nutritional Facts (Per Muffin)
- Calories: ~80 kcal
- Protein: ~6g
- Carbohydrates: ~1 to 2g
- Fat: ~5 to 6g
Nutrition is an estimate based on the listed ingredients and one muffin per serving. Actual values will vary with the brand of feta, the fat level of your Greek yogurt, and how much oil the tin absorbs.
High-Protein Spinach Feta Egg Muffins

Ingredients
- 8 large eggs
- 1/4 cup (60g) plain Greek yogurt
- 1 1/2 cups (45g) chopped spinach
- 3/4 cup (about 3 oz / 85g) crumbled feta
- 1/4 cup (40g) diced onion
- 1/2 tsp salt
- 1/4 tsp black pepper
- A pinch of ground nutmeg
- Oil, for greasing the tin
Instructions
- Step 1: Heat the Oven and Prep the Tin. Preheat your oven to 350°F (175°C). Grease a 12-cup muffin tin generously. Brush oil right up the sides of each cup so it shines, because a well-greased tin is what lets the muffins lift out clean. Set it aside.
- Step 2: Whisk the Egg Base. Crack all 8 eggs into a large bowl. Add the Greek yogurt, salt, pepper, and that pinch of nutmeg. Whisk hard for a full 30 seconds until the mixture turns pale yellow and a little foamy on top. You want it smooth and uniform, with no streaks of clear egg white left behind.
- Step 3: Fold in the Good Stuff. Tip in the chopped spinach, crumbled feta, and diced onion. Stir gently until everything is spread evenly through the eggs. The mix should look speckled green and white, with feta crumbles floating throughout. Give it a quick smell here: fresh, savory, and a little sharp from the cheese.
- Step 4: Fill the Cups. Spoon or pour the mixture evenly into the 12 cups, filling each about three-quarters full. Try to share the feta and spinach fairly between cups so no muffin gets shortchanged. A small ladle or measuring cup makes this fast and clean.
- Step 5: Bake Until Puffed and Set. Slide the tin into the oven and bake for 18 to 20 minutes. Watch for the moment the tops puff up like little soufflés and turn golden at the edges. The centers should look just set, not wet or jiggly. Your kitchen will smell warm, eggy, and savory, with that salty feta aroma signaling they are done.
- Step 6: Cool, Then Lift. Pull the tin out and let it rest for 5 minutes. The muffins will deflate slightly, and that is normal. Run a thin knife or small spatula around each edge, then lift them out. Serve warm, or cool completely and store for the week ahead.









