01 -
Preheat oven to 375°F (190°C). Coat a 12-cup muffin pan with cooking spray.
02 -
In a medium bowl, mix eggs, egg whites, spinach, Italian seasoning, salt, and pepper until evenly blended.
03 -
Pour the egg mixture into the prepared muffin cups, filling each cup about 3/4 of the way.
04 -
Sprinkle sun-dried tomatoes and crumbled feta cheese over the egg mixture in each cup.
05 -
Bake in the preheated oven for 15-18 minutes, until the egg muffins are set and lightly golden.
06 -
Cool in the pan for 5 minutes. Use a small spatula or butter knife to loosen the edges of each muffin, then lift them out of the pan.
07 -
Enjoy the egg muffin cups warm or store them for a make-ahead breakfast.