RecipesFrom the test kitchen
Spinach and Feta Egg Muffins
Baked egg cups loaded with wilted spinach and briny feta, a grab-and-go breakfast that comes in under 100 calories per muffin with solid protein.
Method
- 1
Heat the oven to 350 F and coat a 12-cup muffin tin generously with nonstick spray, hitting the sides as well as the bottoms so the muffins release cleanly.
- 2
Warm the olive oil in a skillet over medium heat. Add the diced onion and cook 2 to 3 minutes until softened, then add the chopped spinach in handfuls and stir until fully wilted, about 2 minutes. Tip the mixture onto a plate to cool slightly.
- 3
Whisk the eggs in a large bowl with the salt and pepper until fully blended and a little frothy.
- 4
Squeeze or press any excess liquid out of the cooled spinach mixture, then stir it into the eggs along with most of the crumbled feta, reserving a little feta for the tops.
- 5
Divide the mixture evenly among the 12 muffin cups, filling each about three-quarters full, and scatter the reserved feta over the tops.
- 6
Bake 18 to 20 minutes, until the muffins are puffed and the centers are set with no wet jiggle. A knife inserted in the middle should come out clean.
- 7
Cool in the tin for 5 minutes, then run a thin knife around each cup and lift the muffins out. Eat warm, or cool completely before storing.
Why this scores well
Original analysis by NutriVerdict
Raw spinach scores a perfect 100 on our Nutrient Density Score, the top of the entire vegetable pool, packing folate, iron, and vitamin K into almost zero calories, which is exactly what a low-calorie recipe wants in bulk. Whole raw egg lands at 62, a strong number for an animal food, because each egg carries about 6 grams of complete protein plus choline and B12 for roughly 70 calories. Feta comes in at 23, low on density because of its sodium and fat, so this recipe uses it as a 2-ounce flavor accent rather than a base. A small amount of raw onion (67) and a single teaspoon of olive oil (34) round out the pan without moving the calorie math. The design is deliberate: high-density spinach for volume, eggs for protein, and just enough feta to make it taste like something you would actually choose.
Tips
- Store cooled muffins in an airtight container for up to 4 days in the fridge, or freeze them in a zip-top bag for a month. Reheat 30 to 45 seconds in the microwave.
- The wilt-and-squeeze step matters. Skipping it leaves water in the spinach, and watery spinach means soggy, deflated muffins.
- Feta is salty on its own, so keep the added salt light. Taste a pinch of the crumbles first if your feta runs briny.
Note: This is food, not medical advice. Whole eggs supply complete protein, choline, and vitamin B12, spinach adds folate, iron, and vitamin K for very few calories, and the feta contributes calcium along with its salt. Portioning the bake into a muffin tin makes the serving size automatic, which is half the battle in any low-calorie breakfast.
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